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By now, more than 100 photos back to the earth by Chang’e-3.A.had been sent B.ha

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By now, more than 100 photos back to the earth by Chang’e-3.A.had been sent B.ha

By now, more than 100 photos ________ back to the earth by Chang’e-3.

A.had been sent B.has been sent C.have been sent D.will be sent

试题答案

C

解析试题