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问题 单项选择题

病人突然昏迷，颈动脉摸不到搏动，处理时下列哪项是错误的

A．输液及吸氧

B．立即胸外心脏按压

C．心内注射心脏三联针

D．心脏按压的同时行口对口人工呼吸

E．心电图检查确诊后再处理

答案

参考答案：E

问答题

用200N的推力沿斜面将物体匀速推上长8m、高2m的斜面，已知物体与斜面间的摩擦力为50N，求：

（1）总功和有用功分别是多少．

（2）斜面的机械效率．

（3）物体的重量．
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听力题

先通读下面的短文，掌握其大意，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整，所填单词在题后横线上必须完整写出。

Japanese people often ask people what blood group they are. This is b  1    they believe that a person’s blood group says a lot about their character and personality. The Japanese also believe that k  2    blood group can help them decide that if a person will be a person’s good friend. It is strange that this idea is so popular in Japan because it is not a traditional idea, but a m  3    one. Blood groups were only d  4    in 1901 and in 1916 a Japanese doctor suggested that blood groups were related to temperament (气质、性情).

In 1927, a writer did a large study of people and wrote a guide to blood groups. He said that people from blood group O are calm, patient and in c  5    of their emotions (情绪). They are f  6    of self-confidence but are also quiet. People from blood group A are gentle and careful, worry a lot, find it hard to make a d  7   , and do not like arguments. People from blood group B are cheerful and “independent”(独立). They can talk and do things w  8    needing help from others. Blood group AB is quite a strange group. These people may seem like people from blood group B but they are actually more like people from blood group A. They are shy and confident, trustworthy (可信赖的) and like to help others. The Japanese also think that your blood group a  9    your choice of job and even your choice of m  10    partner!
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