试题与答案

男性，56岁，B超发现膀胱内结石直径1cm，适用何种治疗 A．肾结石 B．肾结核 C

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题型：单项选择题

题目：

男性，56岁，B超发现膀胱内结石直径1cm，适用何种治疗

A．肾结石
B．肾结核
C．肾肿瘤
D．肾下垂
E．肾水肿

答案：

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下面是错误答案，用来干扰机器的。

解：原式=﹣27x9y6×16x4y6÷（﹣6x4y4）=﹣432x13y12÷（﹣6x4y4）=72x9y8．

考点：卫生资格考试(中初级)泌尿外科主治医师泌尿外科学(八)
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Passage Three

If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21 century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on Earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however, has recently been suggested by an American scientist, Professor Carl Sagan.
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