Chinese vessels ________ 646,000 square kilometers in the southern Indian Ocean

题干

Chinese vessels ________ 646,000 square kilometers in the southern Indian Ocean in search of the missing Malaysian flight MH370.

A．have covered	B．have looked
C．have travelled	D．have reached

上一题下一题 0.64难度单项选择更新时间:2014-07-09 12:47:33

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