单项选择题

One of the solutions to the more and more urgent problem of sea pollution is to produce ships which do not pollute（）

A．海水污染问题的解决更加的迫切，原因之一就是船只的生产带来大量的污染。
B．越来越严重的海水污染问题的解决方案之一是制造一些排放物无污染的船只。
C．解决越来越迫切的海水污染问题的办法是生产一种不污染的船舶。
D．海水污染已经成为一个越来越迫切的问题，解决方案之一是研制出不产生污染的船舶。

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热门试题

单项选择题

Researchers think body language（）

A．can be understood and used by people in communication
B．is more important than spoken language in communication
C．has been discovered in recent years
D．is the study of communication through body movements

单项选择题

It is implied in the third paragraph that（）

A．researchers explain the meaning of a gesture according to the situation in which it is used
B．researchers believe that one gesture has only one meaning
C．researchers think that one gesture can not be used in different situations
D．researchers look for patterns in textbooks to explain the meaning of a gesture