Now more and more man-made satellites are _______ by humans.

A. sent for
B. send up
C. sent up
D. sent into
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科目：初中英語 來源：同步題 題型：單選題

Now more and more man-made satellites are _______ by humans.
[     ]
A. sent for
B. send up
C. sent up
D. sent into

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