心尖区收缩中期附加音并有收缩中晚期杂音者最可能的诊断为（）。

搜题请搜索小程序“爱下问搜题”

问题单项选择题

A．冠心病劳力型心绞痛

B．风心病二尖瓣关闭不全

C．二尖瓣脱垂

D．扩张型心肌病

E． * * 肌功能不全

答案

参考答案：C

单项选择题

切支托的宽度和厚度是

A．宽度为1.5～2.0mm，厚度为≥1.3mm

B．宽度为0.5～1.0mm，厚度为≥1.3mm

C．宽度为2.5～3.0mm，厚度为≥1.0mm

D．宽度为1.5～2.0mm，厚度为≥1.0mm

E．以上都不是

句型转换

根据所给的汉语提示，转换下列句型。

1. I am looking forward to going to senior high school．（对画线部分提问）

are you looking forward to_ ___?

2. I am very happy that I am no longer bottom of the class. （改为同意句）

I am very happy that I am not bottom of the class____ ____.

3. I used to have problems writing and speaking English.（改为否定句）

I____ ____ have problems writing and speaking English.

4. I don't think king cobra is more dangerous than golden poison dart fog. （改为同意句）

I think king cobra is____dangerous____golden poison dart frog.

5. Many scientists think that the most dangerous is mosquito among the world's animal.（改为同意句）

Many scientists think that mosquito is dangerous__ __the other animals in the world.