问题
单项选择题
步行时单足着地的时相是（）
A.双支撑相
B.支撑相早期
C.支撑相中期
D.支撑相末期
E.摆动相
答案
参考答案：C
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步行时单足着地的时相是（）
A.双支撑相
B.支撑相早期
C.支撑相中期
D.支撑相末期
E.摆动相
参考答案：C
The concept of solitude (独处) in the digital world is almost non-existent. In the world of digital technology, e-mail, social networking and online video games, information is meant to be____36___. Solitude can be hard to discover ___37____it has been given up. In this respect, new technologies have ___38____our culture. The desire to be connected has brought solitude to a(n) ___39____as we’ve known it. People have become so ___40____in the world of networks and connections that one can often be contacted ____41___they’d rather not be. Today we can talk, text, e-mail, chat and blog (写博客), not only from our ___42____, but from our mobile phones as well. Most developed nations have become ___43____on digital technology simply because they’ve grown accustomed to it, and at this point not ___44____it would make them an outsider. ___45____, many jobs and careers require people to be ___46____. From this point of view, technology has changed the culture of work. Being reachable might feel like a ___47____to those who may not want to be able to be contacted at all times. I suppose the positive side is that solitude is still possible for anyone who ___48____wants it. Computers can be shut ___49____and mobile phones can be turned off. The ability to be “connected”and “ on”has many ___50____, as well as disadvantages. Travelers have ended up ___51____on mountains, and mobile phones have saved countless lives. They can also make people feel ___52____and forced to answer unwanted calls or___53____to unwanted texts. Attitudes towards our connectedness as a society ___54____ across generations. Some find today’s technology a gift. Others consider it a curse. Regardless of anyone’s view on the subject, it’s hard to imagine what life would be like ___55____daily advancements in technology.
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