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考研
From the first two paragraphs we learn that weightlessness is caused by ______. Which of the following apparatus of the body ma
From the first two paragraphs we learn that weightlessness is caused by ______. Which of the following apparatus of the body ma
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2013-06-10
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问题
From the first two paragraphs we learn that weightlessness is caused by ______.
Which of the following apparatus of the body may be less affected by removing gravity?
选项
A、The inner ear.
B、The limbs.
C、The nerves.
D、The brain.
答案
D
解析
本题是推论题,参见文章第6段,其大意是:排除重力就会改变这些信号。当头部移动时,内耳再也感受不到向下的趋势了。肢体不再有重量,所以肌肉再也不需要收缩或放松来保持某种姿势或进行运动。脚踝部位对触压产生反应的神经也不发出向下的信号了。这些变化和其他一些变化使人产生方位错觉,例如感到身体或太空船突然自动改变方向。比较而言,大脑受到的直接影响没有提及,即使有一些影响也没有上述器官受到的影响那么严重。
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考研英语一
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