水电厂在汛期运行中应该特别关注()。
A.水库水位的变化
B.库区降雨量和入库流量
C.库区天气情况及天气预报
D.其它自然灾害对库区的影响
参考答案:A, B, C, D
The rainy season is coming and let's make full use of the ________ days to dry whatever is needed to dry before the next dry season.
A.few last sunny
B.last few sunny
C.last sunny few
D.sunny last few
某发动机的气缸直径100mm,活塞行程100mm,工作容积为()L。
A.0.785
B.100
C.125
D.1.57