单项选择题
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A.He does not believe what the announcer says.
B.He thinks that the announcer is very good at his work.
C.He does not have an opinion of the announcer.
D.He thinks that they should do what the announcer says.
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单项选择题
A.By forcing them farming.B.By affecting the quality of soils.C.By adding chemicals and pollute the waterways.D.By affecting the environments they live in.
A.By forcing them farming.
B.By affecting the quality of soils.
C.By adding chemicals and pollute the waterways.
D.By affecting the environments they live in.
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单项选择题
A.Acquire information from satellites more efficiently.B.To realize full coverage of area the satellite passes over.C.Building more ground observation centers.D.Compare satellites information with those from ground.
A.Acquire information from satellites more efficiently.
B.To realize full coverage of area the satellite passes over.
C.Building more ground observation centers.
D.Compare satellites information with those from ground.
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