单选题：It is laid down in the regulations that all members must car

题目内容：

It is laid down in the regulations that all members must carry their membership cards at all times． A．suggested
B．warned
C．stated
D．described

参考答案：

答案解析：

The fuel tanks had a capacity of 140 liters．

The fuel tanks had a capacity of 140 liters．A．function B．ability C．power D．volum

分类：卫生类题型：单选题

A lot of people could fall ill after drinking Contaminated water．A．muddled B．pol

分类：卫生类题型：单选题

Most of the butterflies perish in the first frosts of autumn．A．die B．disappear C

分类：卫生类题型：单选题

分类：卫生类题型：单选题

分类：卫生类题型：单选题