Your bag is smaller than . [ ]
A. his
B. he
C. him
答案:A
一次数学竞赛有10道题,做对一题得10分,做错一题倒扣2分,小明得了76分,小明做对了______题.
闸板防喷器要实现正常工作,至少要有()处密封良好。
A、2
B、3
C、4