Recently, online hike-sharing has become the new favorite in China. In major cities, bikes in, yellow, orange, blue, white and green, can be seen almost everywhere on the street. It seems that these bikes appeared suddenly, adding a new beautiful scenery to Chinese cities.

    Both the market and the public welcome online bike-sharing, but is it really a promising business? Well, it depends. After all, online bike-sharing platforms can never get away with huge operating cost and uncertain government policy.

    Some theorists might say that online bike-sharing platforms can earn a fortune simply through deposit. Since users will always need to rent bikes, their deposit will always be kept to online bike-sharing platforms.

    However，although online bike-sharing platforms may be able to use the deposit for other purposes at the primary stage, they will have to set up a special account, so that the deposit shall be used specially for its designated (指定的) purpose. As the market gets increasingly mature, they will have to do so whether to be responsible for users or in consideration of possible government regulations.

    Now that online hike-sharing platforms can，t make profit through deposit，how can they become profitable as fiercer market unfolds? Although Hu Weiwei, CEO of Mobike, stated in an article that she would take Mobike as charitable(慈善的) project if she failed, running a startup is absolutely different from managing a charity organization. After all , she has to pay back investors' billions of investment(投资).

    To make profit, online bike-sharing platforms might have toincrease rent fee for each trip, just as Didi did

    From this aspect, it might be a really good business. If we consider full screen ads fee, recommendation fee for business owners, etc. , its annual income might reach at least RMB 15 billion. If we consider the huge operation cost, including bike repairs，bikes' service life and labor cost, there might not be much net profit left. After all, offline operation cost has always been an unbearable burden for such internet plus mode-based startups.

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    You use her as a shoulder to cry on. She texts you back with casual jokes. But she, Xiaoice, is only a virtual chatbot（虚拟聊天机器人）.

    Xiaoice, Microsoft's latest artificial intelligence robot, was briefly released in 2014, and returned to WeChat in 2015, where she became a big hit. Millions of young Chinese now exchange messages with her daily, The New York Times reported. On WeChat, Xiaoice is an official account. After following it, users can start text-based conversations with Xiaoice.

    “Her incredible learning ability was why people loved to talk with Xiaoice,” Liu Jinchang, a researcher at High-tech Research and Development Center under the Ministry of Science and Technology, told China Daily. Apart from her ability to identify photos and send emojis（表情符号） in conversations, Xiaoice gains 45 percent of her knowledge from interacting with users, China Daily reported.

    Chatbot programs first appeared in the mid-1960s in the US. Driven by top tech companies, they are becoming smarter and more common. For instance, IBM's latest artificial intelligence program served as an academic consultant at Australia's Deakin University, answering students' questions about course schedules and financial aid. Apple's Siri and Amazon's Alexa have been used as voice assistants who can read news, play music and even make jokes for their users.

    These programs are expected to move beyond smartphones, into televisions, cars and living rooms, The New York Times pointed out. However, it may take decades before scientists develop a “Samantha”, the advanced chatbot seen in the fiction film Her. In the film, Samantha has a romantic relationship with her user played by US actor Joaquin Phoenix. Many viewers were enthusiastic about this fantasy of virtual soul mates.

Building your healthy diet

    Although some extreme diets may suggest something else, we all need a balance of protein ( 蛋白质), fat, carbohydrates ( 碳水化合物), fiber, vitamins, and minerals in our diets to keep a healthy body. You don't need to remove certain kinds of foods from your diet, but rather select the healthiest ones.

Protein

    Protein gives us the energy to get up and go — and keep going — while also supporting mood and cognitive function. Too much protein can be harmful to people with kidney  ( 肾 )  disease,  but  the  latest  research  suggests  that  many  of  us  need  more high-quality protein, especially as we grow up. That doesn't mean you have to eat more animal products — a variety of plant-based sources of protein each day can ensure your body gets all the essential protein it needs.

Fat

    Not all fat is the same. While bad fat can destroy your diet and increase your risk of certain diseases, good fat protects your brain and heart. In fact, healthy fat — such as omega-3s — is necessary to your physical and emotional health. Understanding how to include more healthy fat in your diet can help improve your mood and your well-being.

Fiber

    Eating foods high in dietary fiber (grains, fruit, vegetables, nuts, and beans) can help you stay regular and lower your risk of heart disease, stroke, and diabetes. It can also improve your skin and even help you to lose weight. Depending on your age and gender, nutrition experts suggest you eat at least 21 to 38 grams of fiber each day for optimal (最 佳的) health. Unfortunately, most of us aren't eating even half that amount.

Calcium (钙)

    Your body uses calcium to build healthy bones and teeth, keep them strong, send messages through the nervous system, and regulate the heart's rhythm. Not getting enough calcium in your diet can also lead to anxiety, depression, and sleep difficulties. Whatever your age or gender (性别), it's necessary to include calcium-rich foods in your diet.

    “Get your hands off me; I have been stolen,” the laptop, a portable computer, shouted. That is a new solution to laptop computer theft: a program that lets owners give their property a voice when it has been taken.

    The program allows users to display alerts on the missing computer's screen and even to set a spoken message. Tracking software for stolen laptops has been on the market for some time, but this is thought to be the first that allows owners to give the thief a piece of their mind.

    Owners must report their laptop missing by logging on to a website, which sends a message to the model: a red and yellow “lost or stolen” banner pops up on its screen when it is started. Under the latest version of the software, users can also send a spoken message.

    The message can be set to reappear every 30 seconds, no matter how many times the thief closes it. “One customer sent a message saying, 'You are being tracked. I am right at your door', said Carrie Hafeman, chief executive of the company which produces the program, Retriever.

    In the latest version, people can add a spoken message. For example, the laptop's speaker will say: “Help, this laptop is reported lost or stolen. If you are not my owner, please report me now.”

    The Retriever software package, which costs $29.95 but has a free trial period, has the functions of many security software programs. Owners can remotely switch to an alternative password if they fear that the thief has also got hold of the access details.

    If a thief accesses the Internet with the stolen laptop, Retriever will collect information on the Internet service provider in use, so that the police can be alerted to its location.

    Thousands of laptops are stolen every year from homes and offices, but with the use of laptops increasing, the number stolen while their owners are out and about has been rising sharply.

    Other security software allows users to erase data remotely or lock down the computer.

    Do you like to flaunt your expensive items? You could find yourself without friends! Scientists prove that expensive status symbols make you look less socially attractive.

    Items such as a fancy car and a Rolex watch are often thought to increase our social standing and often come with a high price tag(标签). According to the latest research, however, it has the opposite effect and people would prefer to be friends with someone who places less value on material objects.

    "Often we think that status symbols will make us look more socially attractive to others, "says Stephen Garcia, the study's lead author from the University of Michigan. He adds, "However, our research suggests that these status signals actually make us look less socially attractive.

    The researchers conducted six studies which assessed how people presented themselves and how people viewed strangers. People who chose to wear higher status items tended to get a negative response, but people wanted to be friends with people who preferred lower status symbols.

    The study took the role of the luxury item to see if it was possible that the expensive item itself played a part in people's reactions. The definition of a status symbol changed based on a person's socioeconomic status, but the same effect of keeping off potential friends was seen regardless of social position.

    "At a social level, we may be wasting billions of dollars on expensive status symbols that finally keep others from wanting to associate with us, "says Kimberlee Weaver Livnat at the University of Haifa. She says, "And to the extent that close friendships are important to well-being, we may be unintentionally hurting ourselves."

    However, Patricia Chen of the National University of Singapore said this does not necessarily mean status symbols are a bad thing. She says, "Our findings right now only apply to the formation of new friendships, Status symbols may be beneficial at other times and in other settings, such as when trying to establish new business contacts."

There are numerous "secrets" out there on attaining success. The vast majority of these so called secrets all have one thing in common – Attitude.

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The key to developing a successful attitude is to decide that there are certain things in life that you need, rather than merely want. For example, do you want a luxury house?{#blank#}2{#/blank#} Do you want fame and fortune in your career?

Sure, everyone wants these things. {#blank#}3{#/blank#} That is because it's never enough to merely want something. You have to be the type of individual who feels that they need these things in order to survive. This gives you the motivation to work towards your dream and do whatever it takes – except, of course, for breaking laws or hurting people – to get there. And all this must be done with the "fuel" of a positive attitude.

How do you begin to change your attitude?

It is always useful to connect with useful resources outside us in changing our attitude for the better. {#blank#}4{#/blank#} Try to pay closer attention to your inner thoughts.

Realizing where negative thoughts come from can help us get to the point where we are able to erase them. Once they are erased, it is vital to replace them with more positive thoughts. {#blank#}5{#/blank#}

Perhaps your friends and loved ones will not understand the new you. But you can become a role model for them — and it begins by developing a positive attitude!

A. What do you need?

B. Do you want a lot of money?

C. What is the secret to Success?

D. Do you find yourself constantly in doubt?

E. However, the change will always begin inside you.

F. Problem is, very few people are able to attain them.

G. This is how we begin to make an attitude adjustment.