单项选择题

A．By turning the intensity of sunshine into maps.
B．By analyzing the recent weather report.
C．By capturing the microwave radiation from the soil.
D．By analyzing information provided by ground observation centers.
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单项选择题
A．She has never eaten such delicious oranges before.B．She bets there are better oranges available.C．She doesn’’t understand why the man likes the oranges.D．She has had the same oranges before.
A．She has never eaten such delicious oranges before.
B．She bets there are better oranges available.
C．She doesn’’t understand why the man likes the oranges.
D．She has had the same oranges before.
单项选择题
A．Birds have to be taught to navigate.B．A bird that has been caged will not.C．Some birds cannot fly at night.D．Some birds seem instinctively to follow the stars when flying at night.
A．Birds have to be taught to navigate.
B．A bird that has been caged will not.
C．Some birds cannot fly at night.
D．Some birds seem instinctively to follow the stars when flying at night.
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