问题
多项选择题
电力线路上的无功功率损耗包括线路（）中的无功功率损耗。
A.电阻
B.电抗
C.电导
D.电纳
答案
参考答案：B, D
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电力线路上的无功功率损耗包括线路（）中的无功功率损耗。
A.电阻
B.电抗
C.电导
D.电纳
参考答案：B, D
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| 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 1 . Solitude can be hard to discover 2 it has been given up. In this respect, new technologies have 3 our culture. The desire to be connected has brought solitude to a(n) 4 as we've known it. People have become so 5 in the world of networks and connections that one can often be contacted 6 they'd rather not be. Today we can talk, text, e-mail, chat and blog (写博客), not only from our 7 , but from our mobile phones as well. Most developed nations have become 8 on digital technology simply because they've grown accustomed to it, and at this point not 9 it would make them an outsider. 10 , many jobs and careers require people to be 11 . From this point of view, technology has changed the culture of work. Being reachable might feel like a 12 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 13 wants it. Computers can be shut 14 and mobile phones can be turned off. The ability to be "connected"and " on"has many 15 , as well as disadvantages. Travelers have ended up 16 on mountains, and mobile phones have saved countless lives. They can also make people feel 17 and forced to answer unwanted calls or 18 to unwanted texts. Attitudes towards our connectedness as a society 19 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 20 daily advancements in technology. | ||||
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