单项选择题

From thousands of kilometers above our earth, a communications satellite ()a signal from one side of the world and relays it directly to the other.

A. receives
B. accepts
C. admits
D. offers

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单项选择题
Although we hadn't met for 20 years, I recognized him ()I saw him.

A. the moment
B. that moment
C. by the moment
D. for the moment
单项选择题
My parents bought me some books, but()was interesting.

A. neither of which
B. none of them
C. none of which
D. either
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