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【判断题】
In the U.S.political system, the president is the official head of state and in the U.K. political system, the Prime Minister is the official head of state.A.
正确
B.
错误
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【简答题】I would appreciate _____ it a secret. (A) your keeping (B) you to keep (C) that you keep (D) that you will keep
【单选题】Which of the following commands sets the secret password to Cisco?
A.
enable secret password Cisco
B.
enable secret cisco
C.
enable secret Cisco
D.
enable password Cisco
【简答题】A．private B．overt C．public D．secret
【单选题】若氢原子中的电子处于n=3的轨道，则它跃迁时
A.
可能吸收一个可见光子
B.
可能放出一个可见光子
C.
既可以吸收也可以放出一个可见光子
D.
既不能吸收也不能放出一个可见光子
【单选题】If you conceal a secret from your friends, you
A.
tell them the secret.
B.
keep the secret hidden and don't tell it.
C.
hear them tell you the secret.
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