One of the most popular and enduring myths about depression is that depressed people are sad all the time—and that by extension, people who are happy can't be experiencing depression, even if they say they are. It is a mistaken version of depression. Depression doesn't make you sad all the time.

    When I'm having a depressive feeling, I'm not walking around in black clothes, and weeping. I go out with friends. I play jokes. I keep working, and have friendly chats with the people I work with. I read books. Above all, I experience moments of happiness. Yet I feel a strange conflicting pressure. On the one hand, I feel like I need to engage in a sort of sadness for people to understand that I really am depressed and that each day is a struggle for me. Because that way I will appear suitably sad, and thus, depressed—and then maybe people will recognize that I'm depressed and perhaps they'll even offer support and assistance.

    On the other hand, I feel an extreme pressure to perform just the opposite, because sad depressed people are boring and no fun, as I am continually reminded every time I speak openly about depression or express feelings of sadness and frustration. I'm caught in a trap where if I don't perform sadness, I'm not really depressed, but if I express sadness at all to any degree, I'm annoying and boring and should stop being so self-centered. Depression can become your master, but you can slip out from under it occasionally. And many depressed people don't actually spend it fainting dramatically on the couch and talking about how miserable they are.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    Gold Coast family holidays are always great fun whether you are from Australia or from abroad. There are beautiful beaches, adventure parks, nature parks and so much more.

    There are so many sights to see here. It is a pity to drive in a car and you'll miss a great part of it. Australia is home to many animals and birds that can only be seen when moving slowly and going into the areas that they live.

    When you are on a bicycle, you have the advantage of being able to stop whenever you want to see an interesting animal or bird that you have never seen before. It is a quieter mode (方式) of transportation as well, so you might even be able to take a picture. When you are on the beach, you can breathe that clean air and view the beauty of the water and sand. It is a totally different experience from either simply sunbathing or passing it in a car.

    There are many choices of hiring a bicycle to experience the Gold Coast attractions. There are stores that will fit a bike perfectly to your size. These bikes for both adults and children are in many styles and colors to please any taste. If you have ever wanted to try a tandem bike (双人单车), now is your chance, because they have those too.

    A bicycle hire on Gold Coast is something that everyone should try at least once. This is a wonderful chance for anyone who likes to cycle and it is also a cheap way to travel with your family.

    “Don't get discouraged, Hallie,” Kathy said, comforting her with a hug. “It sounds as if you have a bit of a mystery to solve. Maybe you should do a little spying on Maya.”

    Feeling better, Hallie put on her scuba gear（潜水服）again and waited. Maya, the dolphin, had been swimming playfully, but suddenly she threw herself to the back of the tank where the filter box（过滤箱）was located. She stuck her nose down behind the box and then swam away.

    Hallie followed Maya. “What was she doing here?” she wondered. When she looked behind the box, her question was answered. She swam back and saw Maya was in front of Kathy with a comb in her mouth waiting for her treat.

    “Maya! Where did you get that?” demanded Kathy, taking the comb and throwing her a fish.

    “I know,” declared Hallie, handing Kathy a handful of items, “I followed her to the filter box and these are what I found.”

From the look on Kathy's face, Hallie knew everything was beginning to come to light.

    “Do you remember the other day you said that Maya really liked her treats?” asked Kathy.“Well, I think this was more than a training exercise for Maya. Every time you found something in the tank, that meant one less fish for Maya. She couldn't bring all the items to me at once, so she found a hiding place for them. That way you came up empty-handed, but Maya would always get her treat.”

    “Okay, Maya,” said Hallie facing the dolphin, “you win! The treats are all yours.”

    Maya dived down, and then jumped out of the water, turning herself over in midair. Shaking their heads in disbelief, Hallie and Kathy reached for the fish. Maya deserved the treat.

    An Israeli law banning too skinny models went into effect with the start of 2013. The law, approved last March in Israel, requires models to prove they have maintained a Body Mass Index (BMI) of at least 18.5 for three months before a fashion show. That means a woman who is 68 inches tall can weigh no less than 119 pounds.

    "This law is another step in the war against eating disorders," said physician Adatto. "Underweight models," he explained, "can no longer serve as role models for innocent young people who copy their false image of being skinny."

    But some critics in this country say it is misguided, focusing on weight instead of health. They also say the Israeli ban is bound to fail because of the strong power of the fashion industry. "I think it's an approach that isn't going to work." said eating disorder expert Susan Ice, who worked with an organization which creates a healthy working environment for models.

    But Adatto told the reporter that he began to concern the issue after meeting an ambitious model who looked like she needed to be hospitalized. He said. "I realized that only legislation(立法) can change the situation. There was no time to waste; so many girls were dieting to death."

    However, the efforts to regulate models' weight in Spain and Italy have not resulted in significant changes in part because of difficulties in determining reliable methods of measuring weight and health.

    Still, folks including Ice say there's no denying that images from Hollywood and the fashion industry can be difficult for young women to deal with. "Certainly I don't believe the modeling industry has caused the rise in eating disorders, but it makes it harder," she says. "It's a difficult recovery environment, worshiping thinness as the beauty ideal."

    University Room Regulations

    Approved and Prohibited Items

    The following items are approved for use in residential(住宿的)rooms: electric blankets, hair dryers, personal computers, radios, televisions and DVD players. Items that are not allowed in student rooms include: candles, ceiling fans, fireworks, waterbeds, sun lamps and wireless routers. Please note that any prohibited items will be taken away by the Office of Residence Life.

    Access to Residential Rooms

    Students are provided with a combination(组合密码）for their room door locks upon check-in. Do not share your room door lock combination with anyone. The Office of Residence Life may change the door lock combination at any time at the expense of the resident if it is found that the student has shared the combination with others. The fee is ＄25 to change a room combination.

    Cooking Policy

    Students living in buildings that have kitchens are only permitted to cook in the kitchen. Students must clean up after cooking. This is not the responsibility of housekeeping staff. Kitchens that are not kept clean may be closed for use. With the exception of using a small microwave oven（微波炉） to heat food, students are not permitted to cook in their rooms.

    Pet Policy

    No pets except fish are permitted in student rooms. Students who are found with pets, whether visiting or owned by the student, are subject to an initial fine of ＄100 and a continuing fine of ＄50 a day per pet. Students receive written notice when the fine goes into effect. If, one week from the date of written notice, the pet is not removed, the student is referred to the Student Court.

    Quiet Hours

    Residential buildings must maintain an atmosphere that supports the academic mission of the University. Minimum quiet hours in all campus residences are 11:00 pm to 8:00 am Sunday through Thursday. Quiet hours on Friday and Saturday nights are 1:00 am to 8:00 am. Students who violate quiet hours are subject to a fine of ＄25.

When driving, Clara - Marina Martinez makes a note of any unusual behaviour she sees on the road. She then feeds these into machine- learning algorithms(算法), a form of AI, which she is helping develop for Porsche Engineering.

Those algorithms are intended to produce a system reliable enough for a car to drive itself. Such a fully autonomous car, known in the industry as Level 5, should be able to complete an ____ entire journey without any intervention (介入) from the driver, and deal with all situations on the road. But this is proving hard to achieve, and many attempts to do so are being abundoned. Last year, for instance, Uber sold off its unit developing self- driving cars.

Autonomous vehicles are said to be not just convenient but potentially safer. However, just as people take time to learn how to drive safely, so do machines. And machines are not quick learners. The RAND Corporation calculates that to develop a system 20% safer than a human driver, 100 self- driving cars would have to operate 24 hours a day, 365 days a year.

 Carmakers such as Porsche therefore speed up the development process using simulators(模拟器). These teach software about dangers rarely encountered in reality. Dr Martinez and her colleagues employ "game engines" to do this. These are used to create virtual worlds through which the software can drive. Objects in these virtual worlds are assigned their physical characteristics ( ie, buildings are hard, people are soft) so that the sensors in vehicles respond in the appropriate way. Once the software has been trained, it is tested in real autonomous vehicles by re- creating those situations on a test track.

 How quickly all this will translate into reality remains to be seen. Both regulators and customers will need to overcome the doubt that a software driver really can be safer than a human being.

 From Porsche's point of view, though, there is another question. Given that much of the reason owning a sports car is for owners to show off their driving skills, just how big a market will there be for a version where software takes those bragging(炫耀的) rights away?