女,50岁,戴全口义齿后经常咬舌缘,其原因最可能是()
A.反覆小
B.反覆盖小
C.反覆过大
D.反覆盖过大
E.以上都不对
参考答案:B
She often thinks that he will succeed if he works hard, _____?[ ]
A. doesn't she
B. won't he
C. isn't she
D. doesn't he
The number of workers in this factory _____ 1,500.
A number of them _____ from the countryside. [ ]
A. is; are
B. are; is
C. is; is
D. are; are