题目内容：
China plans__________ an unmanned space module, Tiang0ng-l,in 2011, which__________ to accomplish the country's first space docking and regarded as an essential step toward building a space station．（ ）
参考答案：
答案解析：
单选题：China plans__________ an unmanned space module, Tiang0ng-l,i
- 题目分类：英语
- 题目类型：单选题
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