赞题库-背景图
单项选择题

A．He works at home.
B．He relaxes.
C．He paints pictures.
D．He goes fishing.
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单项选择题A．illB．healthyC．weakD．patient

A．ill
B．healthy
C．weak
D．patient

单项选择题On the basis of their models, scientists are of the opinion that______.

A．the climate of the world should be becoming cooler
B．it will take thousands of years for the inertia of the earth’s climate to take effect
C．the man-made warming effect helps to increase the solar effect
D．the new Ice Age will be delayed by the greenhouse effect