试题与答案

现场检验时测定次数一般不得少于5次,取其平均值作为实际误差,对有明显错误的读数应舍去

题型:判断题

题目:

现场检验时测定次数一般不得少于5次,取其平均值作为实际误差,对有明显错误的读数应舍去。当实际误差在最大允许值的80%~120%时,至少应再增加2次测量,取多次测量数据的平均值作为实际误差。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:临床上如果每分钟肺泡通气量异常低于一定的CO2代谢速率,则可导致动脉血二氧化碳分压(PaCO2)的升高,称为肺泡低通气。典型的肺泡低通气,PaCO2通常大于6.0kPa(45mmHg).

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题型:阅读理解

Mr. and Mrs. Brown lived in a short and wet room last year. Now their daughter was born, the room was too narrow for them to live in. Last Friday, after the factory paid out wages(工资), Mr. Brown had to borrow some money from his friends and bought an old house. It’s a little bigger and drier than the old one. But the walls were very dirty. Mrs. Brown told her husband to paint them.

It was Saturday. Mr. Brown didn’t go to work. He came in a paint shop and bought two cans(罐) of paint. It was made in(由┅生产) Japan. He looked at the directions(说明书) for a long time, but he couldn’t understand it at all. Before leaving the shop, he had to ask the shopkeeper, “Can I put this paint on myself, sir?”

It seemed the shopkeeper didn’t understand him. He looked at Mr. Brown up and down and then he said,” You’d better put it on the wall, sir. It would look better, I think.”

小题1:Mr. Brown works in a _______________.

小题2:There are _____________ people in Mr. Brown’s family now.

小题3:The house they bought was a little bigger and drier, but the walls were very _______.

小题4:Mr. Brown bought two cans of paint, but he didn’t _______________ the directions.

小题5:The two cans of paint are made in _______________.

小题6:The shopkeeper thought Mr. Brown would paint not on the walls, but on his _______.

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