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问题 单项选择题

心室率较快，RR间距不齐，QRS波群宽窄不等提示为

A．室性期前收缩
B．室内差异性传导
C．预激综合征合并心房颤动
D．室性心动过速
E．预激综合征

答案

参考答案：C

改错题

下面文中共有十处语言错误，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：在缺词处加一个漏子符号（/\），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：在错的词下面划一条横线，并在该词下面写出修改后的词。

注意： 1.每处错误仅限1词； 2. 只允许修改10处，多者（从第11处起）不计分。

Dear Li Mei,

With the mid-term exam come, you must get prepared for them. I think that you need is a right study method. As we all know, there are three stage in study--- preview, study in class and review, among which review was the most important. You should first make a review plan, then stick on it. I follow my review plan strictly and have made a progress in my study. It turns out to be good enough. Of course, there are more than one way to review. So long as you review regular, I’m sure you can find more ways to study well. If you have any question about subjects, ask me I’ll be glad to help you. We may meet in our school library every Friday afternoon.
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单项选择题

组织兴奋后处于绝对不应期时，其兴奋性为

A．零

B．上限大

C．大于正常

D．小于正常

E．接近正常
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