下列关于肛瘘的描述中正确的是（）。 A.肛瘘主要侵犯直肠 B.肛

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问题单项选择题

下列关于肛瘘的描述中正确的是（）。

A.肛瘘主要侵犯直肠

B.肛瘘不与肛周皮肤相通

C.肛瘘最常见的类型是肛管括约肌间型

D.肛瘘多为结核菌感染所致

E.肛瘘只能自愈

答案

参考答案：C

完形填空

根据句意，用所给动词的适当形式填空。

小题1:Unit 3 ________ (consist) of 8 lessons three years ago.

小题2:In the past few years, she _______(write) three popular books.

小题3:The old computer _______(break) down easily, so I had to restart it again and again.

小题4:He likes playing the guitar _________ (have) fun when he has spare time.

小题5:The Great Wall as well as the Palace Museum _________ (attract) lots of tourists from abroad every year.

单项选择题 A型题

缺氧时人体各组织器官血流分布正确的是（）

A.肺血管舒张

B.心供血量增多

C.脑供血量减少

D.皮肤血流量增多

E.肾血流量增多