游标卡尺按其读数值可分为（）几种：
A、0.1mm
B、0.01mm
C、0.02mm
D、0.05mm
参考答案：B, C, D
We’ll have more meetings like this in the weeks _____.
A. coming B. to be coming C. to come . came
将城市工程管线按弯曲程度分类，下列哪一组管线属于可弯曲管线( ) ①自来水管道；②污水管道；③电信电缆；④电力电缆；⑤电信管道；⑥热力管道
A．③④⑤ B．①②③ C．③④⑥ D．①③④
