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问题 单项选择题

(8—12题共用题干)女性，28岁。因“服用敌敌畏30ml后出现呕吐、出汗、呼吸困难、流涎及意识不清2h”被人送医院急救。

本例如作全血胆碱酪酶活力测定，则全血胆碱酯酶活力值为多少时可诊断为中毒

A．＜100％

B．＜80％

C．＜70％

D．＜60％

E．＜50％

答案

参考答案：C

改错题

短文改错（共10小题；每小题1分,满分10分）

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处中加一个漏字符号（^），并在其下面写出该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从第11处起）不计分。

Dear Li Ming,

To my opinion, when you reach London, the first place you should have set out for is Big Ben, where can be heard all over the world on BBC. Big Ben takes its name from Sir Benjamin Hall in 1858, who was responsible for the making of the world-famous clock at that time. It only has a very big size, but is extreme accurate as well. Officials from Greenwich Observatory have the clock check twice a day. On BBC, you can hear a clock when it is striking because microphones are connected to the clock tower. Big Ben has hardly gone wrong up till now. Once, therefore, it failed to give the correct time. A painter who worked on the tower hung a pot of paints on one of the hands and slowed it down!

Yours,

Mary
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选择题

如图，在盛有碘水的三支试管中分别加入苯(密度比水小，不溶于水)、四氯化碳和酒精，振荡后静置，出现下列现象，正确的结论有(  )

A．①加入的是CCl4，②是苯，③加酒精

B．①加入的是酒精，②加CCl4，③加苯

C．①加入的是苯，②加CCl4，③加酒精

D．①加入的是苯，②加酒精，③加CCl4
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