Scientists are convinced ___________the positive effect of laughter_________ phy
题型:同步题难度:来源:
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
C |
举一反三
The rule is no longer__________in this area. |
[ ] |
A. in effects B. taken effect C. of no effect D. in effect |
The twins are so alike that their classmates always mistake one________the other. |
[ ] |
A. by B. for C. at D.in |
Eggs are________ size. Which is wrong? |
[ ] |
A. classified according to B. sorted according to C. classified by D. classified as |
Working in the kitchen for years made Tom_________a good cook. |
[ ] |
A. for B. into C. of D. as |
The Rocket has been busy playing as guest ________ the last month. |
[ ] |
A. by B. since C. after D. for |
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