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【判断题】
牙髓钙化:牙髓组织血循环较差,室变窄,根尖变小,引起牙髓变性。牙髓变性后钙盐沉积,形成大小不等的沉积物。有两种形式,一是髓石形成,一是弥散性钙化。X线:1 局限性髓石与髓室形状有一定关系。后牙髓石往往表现圆形或卵圆形,大小不一。前牙髓室较小,髓石可呈条状或针状充满于髓室及根。2 弥散性牙髓钙化表现为正常髓室及根管影像完全消失,不能辨别出髓腔界限。A.
正确
B.
错误
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【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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