单项选择题

In order to handle the greenhouse effect, the UNEP warns that ______.

A．the world must agree on what has caused the changing climate
B．the world must agree on what may result from the changing climate
C．all the countries should agree on how to reduce the greenhouse gases
D．all the countries should take part in looking for the solutions
<上一题 目录 下一题>
热门 试题

单项选择题
The US refused to join the 1997 Kyoto protocol because it ______.
A．thought it unnecessary to deal with the global warming
B．found it impossible to reach the goal set by the protocol
C．doubted whether it was treated equal as the biggest polluter
D．believed that control of oil use would be more effective
单项选择题
By saying that humans have never had it so good (Linel, Para. 2), the author means that people nowadays ______.
A．enjoy a much better life than before
B．has reached the peak of civilization
C．are more powerful in changing the earth
D．live in a world with more advanced medical science
相关试题