搜题请搜索小程序“爱下问搜题”
问题 单项选择题

我国全年降水量约有一半以上集中在夏季，从而形成我国水资源（）丰富、冬春贫乏的特征。

A.夏季

B.春季

C.秋季

D.夏、秋

答案

参考答案：D

选择题
The coal miners ____ in the coal mine for 10 hours before we came to their rescue.

A. had trapped
B. had been trapping
C. had been trapped
D. would have been trapped
查看答案
判断题

在橡套电缆屏蔽层的修补过程中，若屏蔽为金属屏蔽的线芯应采用原屏蔽材质或金属丝网进行修补。（）
查看答案