When it comes to the Internet, passwords which people often use are under fire. {#blank#}1{#/blank#} Research has shown that passwords are not a very good way to protect sensitive information.

    People would use some random characters, numbers and symbols. Furthermore, a unique password would be used for every site or application the user uses. Unfortunately, the more complex they become, the more people are likely to forget their passwords. The longer the passwords are, the more easily forgotten they are.{#blank#}2{#/blank#} 

    Google is trying to kill off the password on Android devices by introducing the Trust API, which does what simple passwords cannot. It gives developers a framework for securing their applications using a number of security systems and metrics (指标)on the device. A Trust Score will be generated based on the metrics the device gathers. {#blank#}3{#/blank#} 

    The Trust Score will be generated based on both metrics like your device location, face scanning, fingerprint and so on. Taken one at a time, these metrics arc not secure. But taken together, these metrics will help define the real "you".

    {#blank#}4{#/blank#}  This summer, Google will be running tests with some banks to see if Trust API meets their needs before rolling out to all developers later this year. It may take another year for apps and popular sites to start using the Trust API.

    This is a pretty exciting change. Passwords have been around for long and although the security of systems has been improved, the convenience of systems hasn't been improved much. {#blank#}5{#/blank#}  Maybe that never-ending conflict between security and convenience will be able to take a break once the Trust system comes out.

A. Google appears to have the best of them.

B. Actually it's been under fire for a long time.

C. People tend to care more about its advantages.

D. Google has already been testing this on the real world.

E. Google has proved that the system is more convenient.

F. Therefore, they use the same password for each application.

G. It'll allow or refuse your application based on your trust score.

    Everyone knows that if a dog's ears are up and its tail is wagging vigorously, it is definitely pleased to see you. but now scientists using a robot have found that the way dogs use their tails is more complicated than we thought, and that dogs which wag them to the left may he more friendly. The animal psychologists discovered that when real dogs approached a life-sized robot dog, they were less cautious about it when it was wagging its tail to the left, while if it was wagging its tail to the right, far fewer dogs approached it in a confident manner.

    In the first experiments, 56 percent of the animals approached the model without hesitation when the tail was wagged to the left, while only 21 percent did so in the other situation. When the researchers excluded (排除) owners from being present, the result were: 31 percent of the dogs approached continuously when the tail was wagging to the left, while only 18 percent did so when it was on the right.

    Animal psychologist Roger Mugford said it added to the growing evidence that does were even more complicated communicators than the animals more closely related to man such as monkeys. He said, “We know that dogs, in a sense, have languages, but it is more complicated because it is not just them wagging their tails, but also giving out chemical displays.”

    He adds, “The research confirms earlier studies suggesting that dogs, like humans, had a left-side preference. If you are going to present a signal to a dog, it is sensible to put it on your left-hand side because that is where dogs, unlike most other animals, tend to look. It is another example of the similarity between dogs and humans. They are a lot more human than we give them credit for.”

    Some international languages are widely used for many purposes. Some minority languages will die out and some nations tend to keep minority languages. I reckon that most common used international languages ease our life quality and communication with different nationalities. On the other hand, we need to help improve minority languages.

    There are many languages in the entire world but two or three minority languages die out each year. Some countries try to save dying languages. For instance, Australian Government created a project to save the language and culture of Maori who are Australian aborigines. And there are other projects to keep minority languages such as American Indian language.

    However, the worldwide job market usually requires candidates who can speak English or other international languages. People who cannot speak lingua franca (共通语) could hardly be promoted at work. For example, some companies need an employee who can deal with foreign companies. So most people tend to learn at least one international language that helps them to find a better job.

    Therefore, world needs one common lingua franca that should be spoken in any country. Consequently, one common language should be a required subject in every school. So anyone speaking one common language can travel without worries to any point of the world and trade their products. People will not be forced to learn many languages.

    In conclusion, we should help minority nations to keep their languages for the cultural diversity. To ease the worldwide communication among nations, we should create a common language and provide courses of it. As a result, no one will face a language issue.

    Everyone should choose the right hair dryer for fine hair, because an unsuitable hair dryer can damage our hair. You can buy hair dryers from a recognized discount store or from online discount stores. If not, it is always better to buy it from a reliable and well-known beauty store in your area. Here are some of the top products.

    Conair iSeries Infiniti Hair Dryer

    It is designed with the technology which is quite useful for less curly and more manageable hair. Some other features of this hair dryer include 3 heat and 2 speed settings, a foldable handle and removable filter(过滤器). It also comes with 2 years' guarantee. The average cost of it is around $38.

    Click here for more information.

    Sedu Revolution Pro 6000i Dryer

    This is the latest model of dryers from Sedu, and comes with powerful air flow.

    It is one of the most popular professional dryers in the market. It comes with 6 heat settings, a long-lasting AC motor and the instant cold shot button. This dryer has 2 years' guarantee and is available at $160.

    Click here for more information.

    CHI Nano Dual Air Flow Hair Dryer

    It is lightweight hair dryer that comes with infrared(红外线的)technology indicator lights and a noise-free speed motor. This hair dryer also comes with a year's guarantee. The average cost of it is around $255.

    Click here for more information.

    BabylissPro Carrera 2 Hair Dryer

    If you want a hair dryer which helps achieve smooth and curly-free hair, then BabylissPro Carrera 2 Hair Dryer is a good choice. It has compact(简洁的)design and various powerful styling features. This dryer is available at $100.

    Click here for more information.

    To protect your hair, remove the excess (过多的)water with a towel before using the dryer. Work on the lowest setting, as more heat can cause damage to the hair. Whenever drying your hair, you should keep moving the hair dryer.

Hannah Ray J was introduced to river surfing after noticing a surfer in the middle of a river in I owa by chance. This arouse a passion that has since defined her life. River surfing, once an exciting activity, is now gaining public attention in the Midwest as an exciting outdoor sport. 

New Whitewater parks and surfing areas are being developed across the region, such as in Nebraska and Iowa, with plans to attract thousands of visitors, boosting local economies. Badfish SUP, a Colorado- based company, reports a significant rise in river surfboard sales since the pandemic(疫情) began. They've even named a board" Wave Farmer" in honor of those living near these new recreation spots. 

The constant waves in rivers, unlike the ocean, allow surfers to practice constantly. Technological advancements have helped transform river surfing from a rare to a mainstream activity. The growing interest is evident in the number of cars at the WOKA Whitewater park in Oklahoma, exceeding expectations. 

WOKA offers rent gear(齿轮) and live webcams(摄像头) to check wave conditions. The community support for such activities is also noticeable, with businesses related to Whitewater activities expanding into the area. Other cities are looking to reproduce these successes with plans for Whitewater parks on their rivers. 

However, challenges remain, including water quality issues, variable river flows, and safety risks associated with fast- moving water. Despite these barriers, river surfing looks set to continue its rise in popularity, offering both thrills and economic opportunities for many communities.