Those who left their own country for reasons other than a well-founded fear of persecution were designated for repatriation.
A. being punished
B. being imprisoned
C. being sent back
D. being respected
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The banks should have been more circumspect in their dealings.
A. cautious
B. diligent
C. carefree
D. frank
Those who embark on the quest for knowledge of the best regime may not return the same people that they were before.
A. go aboard
B. commence
C. get used to
D. invest in
设A={0,1,2},B={a,b,c},则可产生______ 个从A到B的函数。
设R是由方程x+3y=12定义的正整数集Z+上的关系, 即{︱x,y∈Z+∧x+3y=12},则R中有______ 个有序对,{3}在R下的像是______ 。