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【单选题】
China's first Mars probe,Yinghuo－1,is expected to be launched in the second half of this year and it will be the first time that China will __________ another planet. [ ]
A.
explore
B.
research
C.
discover
D.
invent
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】对航空器及其部件进行重要修理和改装后,批准恢复使用人员的资格是
A.
独立的持有民用航空器维修人员执照
B.
持有民用航空器部件修理人员执照
C.
局方授权委任代表
D.
持有CCAR-61部飞行员执照
【单选题】China's first Mars probe，Yinghuo1，was launched in the second half of the year 2011 and it was the first time that China ________ another planet. [ ]
A.
explored
B.
researched
C.
discovered
D.
invented