Scientists are convinced the positive effect of laughter physica

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Scientists are convinced the positive effect of laughter physical and mental health. [ ]
A. of;at
B. by;in
C. of;on
D. on;at

答案

举一反三

The boy went swimming in the deep lake his mother"s fears for his safety. [ ]
A. in the face of
B. as a result of
C. regardless of
D. in spite of

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Olive’s face was as white as paper. ,Mr.Smith’s face was very red. [ ]
A.But
B.Although
C.On the contrary
D.Frankly

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As is known to us all,French wine is usually high quality and is very popular all over the world. [ ]
A. of
B. off
C. with
D. down

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After leaving home,the young man became acutely conscious having failed his parents. [ ]
A.to
B.of
C.by
D.with

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I came here for nothing else but to see you . [ ]
A.purpose
B.propose
C.to the purpose
D.on purpose

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