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  3. The passage is mainly about______. Which of the following statement can NOT be inferred from the passage?

The passage is mainly about______. Which of the following statement can NOT be inferred from the passage?

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问题 The passage is mainly about______.
Which of the following statement can NOT be inferred from the passage?
选项 A、When traveling in space, spacecraft take indirect route to avoid gravity from the other planets.
B、Space engineers are now developing space elevators.
C、It will take the current spacecraft several hundred years to travel to other solar systems.
D、Scientists from different countries are working together to develop new space technologies.
答案A
解析 推断题。题意为："下列哪句陈述无法从文中推断出?"用排除法，选项"太空工程师正在研究太空升降装置"，根据第三段末句(即使将货物升至轨道的相当于太空电梯的升降装置正在绘图板上)，可知其为正确推论。选项"飞到其他太阳系需要百年的时间"，根据文中第二段末句，为正确推论。选项"几个国家的科学家正在全力开发新的太空技术"。根据最后一段末句"美国的波音公司、莫斯科的RSC-Energia和奥斯陆的Kvaerner正在进行合作以建立更好的发射平台"，可知其为正确推论。惟有选项"在太空飞行时，飞船绕道飞行，以避开其他行星的重力"不能从文中推出，为正确答案。
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