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【多选题】
两个不规则带电导体间的电场线分布如图所示,已知导体附近的电场线均与导体表面垂直, a 、 b 、 c 、 d 为电场中的几个点,并且 a 、 d 为紧靠导体表面的两点,选无穷远为电势零点,则 ( )A.
场强大小关系有 E b ＞ E c
B.
电势大小关系有 φ b ＞ φ d
C.
将一负电荷放在 d 点电势能为负值
D.
将一正电荷由 a 点移到 d 点的过程中电场力做正功
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举一反三
【单选题】We learn that the strange voices John Nash heard came from ______.
A.
his subconsciousness
B.
some alien beings
C.
the actor's imagination
D.
the True reality
【单选题】Early in the film 'A Beautiful Mind', the mathematician John Nash is seen sitting in a Princeton courtyard, hunched over a playing board covered with small black and white pieces that look like pebble...
A.
Programming other board games has been relatively easy.
B.
Programming other board games has been relatively difficult.
C.
Programming other board games has been relatively complicated.
D.
Programming other board games has been relatively predictable.
【单选题】What’s the relationship between“John’S uncle bought a new car yesterday”and“John has an uncle”?
A.
Entailment．
B.
Contradiction．
C.
Tautology．
D.
Presupposition．
【单选题】What does John mean?
A.
John may go with Kate.
B.
Nobody can go with John.
C.
Kate has to go by herself.
【单选题】Early in the film 'A Beautiful Mind,' the mathematician John Nash is seen sitting in a Princeton court- yard, hunched over a playing board covered with small black and white pieces that look like pebb...
A.
Go is a more complex game than chess.
B.
Go reflects the way human beings think.
C.
Go players are likely to feel frustrated.
D.
Go poses a challenge to artificial intelligence.
【单选题】When John Nash went into his mental illness, he didn't realize that ______.
A.
he was quite alerted
B.
he was enlightened
C.
it was mental illness
D.
it was in a movie
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