单项选择题


Questions 14～17 are based on the following dialogue.
What will Mr. Bush’s trip probably be

A．His home→Sydney→Cairo.
B．His home→Cario→Sydney.
C．Cairo→His home→Sydney.
D．Sydney→His home→Cairo.
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单项选择题
What will be the result of harmful emission reductions for the developing countries
A．They will be able to avoid the mistakes made by the developed countries in harmful emission.
B．Their economy will collapse.
C．They will be forced to meet a certain emission standard to protect the environment.
D．They will have to develop new technologies so that the environment will not be threatened.
单项选择题
The main point of paragraph two is to describe ______.
A．effects of changes in the climate of China on food production
B．future changes in the vegetation
C．future changes in the growing season
D．projected future changes in the climate of China
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