The successful launch of Tiangong1 symbolizes a further step for China to join
题型：不详难度：来源：
The successful launch of Tiangong1 symbolizes a further step for China to join in the________of space stations previously mastered by Russia and the US.| A．invention | B．production | | C．operation | D．preparation |
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答案
| C |
解析
| 考查名词辨析。句意：“天宫1号”的成功发射使中国向空间站的运作更近了一步，空间站技术先前只有俄罗斯和美国掌握。operation“运行，操作”，符合语意。 |
举一反三
Have you thought about the problem from every________？You can never be too careful!| A．angle | B．range | | C．level | D．individual |
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Sara enjoys amusing her friends by________stories.| A．keeping up | B．making up | | C．putting up | D．taking up |
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