假定变量a表示年龄,x表示毕业年数,领取社会补助的条件为毕业3年内,1994年后出生,那么如何设计表达式表达该条件_____
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She had _give the doorman a tip in order that he would help her with her suitcase.
A. to
B. on
C. in
D. a
It was an hour until the ppolice.
A. arrived
B. arrive
C. arriving
D. arriveding
_did this can'thave been using good judgement.
A. whoever
B. however
C. that
D. who
The task that he had to deal with seemed impossible,but he was dctemined to succeed.
A. 对
B. 错