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【单选题】

Mother kept inviting Mrs. Smith to stay for lunch, and finally she ______.

A.
gave back
B.
gave off
C.
gave up
D.
gave in
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参考答案:
参考解析:
.
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举一反三

【单选题】算式的C语言表达式是( )

A.
1/(1/x+1/
B.
1/1/x+1/y
C.
1/(1/+1/y
D.
1/1/(x+