题库试卷

单选题Which option can summarize the main idea of this passage选项：

来源：百年教育职业培训中心　更新时间：2022-12-16 13:45:15

正确答案：微信搜索【国开搜题】公众号广东开放大学2023年春季招生简章单选题Whichoptioncansummarizethemainideaofthispassage?选项：A.Whydowene

单选题Which option can summarize the main idea of this passage?选项：

A.Why do we need to build a space elevator?

B.What can we do after building the space elevator?

C.Why does building a space elevator cost less than using rockets?

参考答案：A

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