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【单选题】
11管整流的交流发电机有( )个负二极管。A.
3
B.
4
C.
6
D.
9
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参考解析：
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皮皮学刷刷变学霸
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【简答题】由于一半狐一半狗的血统,使阿牙成为了怎样复杂的结合体?
【单选题】Sooja, the vice president of Neo Systems, runs a tight ship and makes sure that her top management team does what she wants it to. If any member raises issues, she fires that member. Sooja exerts ____...
A.
coercive
B.
reward
C.
referent
D.
connection
【单选题】下列哪一项不是一般的网络运营者需要履行的安全保护义务。（）
A.
采取防范计算机病毒和网络攻击、网络侵入等危害网络安全行为的技术措施
B.
制定网络安全事件应急预案，并定期进行演练
C.
采取数据分类、重要数据备份和加密等措施
D.
采取监测、记录网络运行状态、网络安全事件的技术措施
【单选题】听力原文： 'All work and no play makes Jack a dull boy' is a popular saying in the United States. Other countries have similar sayings. It is true that all of us need recreation. We cannot work all the tim...
A.
It is a story about a dull boy.
B.
Jack worked for a whole day.
C.
Everyone needs recreation to keep fit.
D.
Playing is good, but work is dull.
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