一摄影师在11小时内要冲洗87个胶卷,如果在开始的5小时内平均每小时冲洗9个,那么在剩下的6小时中平均每小时必须冲洗几个()
A.5
B.6
C.7
D.15/2
参考答案:C
测量
The child is _____ to _____ himself. [ ]
A. old enough, wear
B. old enough, dress
C. young too, dress
D. young too, wear