—China's first large passenger plane C919 flew successfully on May 5.—Yes. What's more, it was built_刷题宝

题干

—China's first large passenger plane C919 flew successfully on May 5.

—Yes. What's more, it was built on our own in Shanghai.

A：with some help

B：from our friends

C：by ourselves

上一题下一题 0.0难度选择题更新时间:2018-06-22 09:17:31

答案(点此获取答案解析）

C

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