试题与答案

下列哪项应考虑癌性胸腔积液 A．胸腔积液清澈、静置不凝固，比重为1.016～1.01

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题型：单项选择题

题目：

下列哪项应考虑癌性胸腔积液

A．胸腔积液清澈、静置不凝固，比重为1.016～1.018，以淋巴细胞和间皮细胞为主
B．胸腔积液是淡血色，红细胞＞10×1010/L
C．胸腔积液淡黄绿色，比重＞1.018，白细胞高于500×106/L，pH＜7.30，Rivalta试验阳性
D．胸腔积液有臭味，比重＞1.018，白细胞为 10×108/L，pH＜7.00，Rivalta试验阳性
E．血性胸腔积液，红细胞＞5.0×108/L，胆固醇含量增高，LDH＞500U/L

答案：

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阅读下列短文，从四个选项中选出能回答所提问题或完成所给句子的最佳答案。
         The computer age is making an army of robots-machines that are directed by electronic (电子的) brains
and which replace human labor in industrial operations. Many are man-made arms which reach into areas man
enters only at the cost of his life, such as the inside of a nuclear reactor (核反应堆).
         Already in 1980, there were over 8000 such robots working in industrial plants throughout the world.
The big change over to the robot, however, is likely to come only when their costs go down while workers'
wages continue to rise.
1. Sentence 1 means that robots are used mainly____.
[ ]
Ａ：to fight wars
Ｂ：to operate computers
Ｃ：to direct electronic brains
Ｄ：to take the place of human workers
2. The shape of many robots already in use looks like a human____.
[ ]
Ａ：brain
Ｂ：arm
Ｃ：hand
Ｄ：eye
3. The passage makes it clear that a very valuable use of many robots is to _____ .
[ ]
Ａ：act as a teacher to children
Ｂ：replace the human brain in making computers
Ｃ：help doctors in medical operations
Ｄ：do tasks very dangerous for humans to do
4. Which of the following about the last sentence is true?
[ ]
Ａ：Robots are becoming cheaper all the time.
Ｂ：Robots are becoming more and more expensive.
Ｃ：The cost of a human worker is higher than that of the average (普通的) robot.
Ｄ：The cost of the average robot is higher than that of a human worker.
5. The writer thinks that the widespread replacement of human labor by industrial robots _____.
[ ]
Ａ：has already begun worldwide
Ｂ：is starting especially in the developing nations
Ｃ：is being put off mainly for economic (经济的) reasons
Ｄ：will not take place before the end of this century
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