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问题 单项选择题

小儿腹泻伴低血钾时，下列哪一项是不正确的()

A．腹泻时由于排钾过多以致缺钾

B．酸中毒时易致低血钾

C．血钾低于3.5 mmol／L，临床出现缺钾症状

D．补液后血液被稀释，血钾相对减少

E．补液后钾由尿中排出，引起缺钾

答案

参考答案：B

改错题

第一节短文改错(共10小题；每小题l分，满分l0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l0处语言错误，每句中最多有两处．每处错误仅涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号（√)，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l0处，多者(从第11处起)不计分．

I am a high school student. A few days before, one of my very good friend told me that he was going to stop the school. He said that he wanted to start his own business. I tried my best to get him change his mind, but failed. I know it is difficult of him to change his mind. He is not doing so good in his studies, but I want to insist that she should give it a try. Now there are only 90 days leaving before the test. I am not sure that his decision is right or wrong. I needed your advices. 

Yours，

Li Hua
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判断题

美国精神障碍诊断与统计手册(DSM)系统中在DSM-Ⅲ以前,也坚持等级标准。（）
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