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【单选题】
以下关于抽象类的说法哪个是对的A.
抽象类中所有成员变量都是公开的
B.
抽象类中所有成员方法都是具体的
C.
抽象类中必须有至少一个以上的抽象方法
D.
抽象类就是最终类
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举一反三
【单选题】I wish you ______me how to make such a sauce last time.
A.
teach
B.
taught
C.
have taught
D.
had taught
【单选题】---- You have never seen an American film, have you? ---- ________. How I wish I had such a chance!
A.
Yes, I have
B.
Yes, I haven’t
C.
No, I have
D.
No, I haven’t
【单选题】I wish that you_____such a bad headache because I'm sure that you would have enjoyed the concert.
A.
hadn' t
B.
didn' t have had
C.
hadn' t had
D.
hadn' t have
【单选题】I wish that you ____ such a bad headache because I am sure that you would have enjoyed the concert
A.
had not
B.
did not have had
C.
hadn ’ t had
D.
hadn ’ t have
【简答题】下列哪种疾病的病人不需要留置导尿
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