引起产褥感染的外源性感染最常见病原菌是（） A.β溶血性链球菌_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题 A1/A2型题

引起产褥感染的外源性感染最常见病原菌是（）

A.β溶血性链球菌

B.厌氧链球菌

C.大肠杆菌

D.葡萄球菌

E.支原体衣原体

答案

参考答案：A

解析：需氧性链球菌是外源性感染的主要致病菌，其中β溶血性链球菌致病能力最强，与产褥感染关系密切，可引起严重感染。

完形填空

完形填空。

     Some children wish to be writers some day. It means that they want to    1   stories or books for people to   2   . That's nice! It’s    3   to write something for people! But they should    4   that they need to be good readers   5
before they are really good writers. They should read a lot of books, and
read     6   hours every day. They cannot spend much time watching TV or
playing games when they are     7   .
     If you are a good reader, it doesn't     8     you a long time to do the
reading. Then you  have time to read many other    9     for fun.
     Before you decide to be a good writer, you'd better say to   10   ,"I must
read andread more and more! "

( )1. A. learn
( )2. A. read
( )3. A. well
( )4. A. teach
( )5. A. first
( )6. A. in
( )7. A. busy
( )8. A. spend
( )9. A. games
( )10.A. yourself

B. look at
B. see
B. good
B. listen
B. last
B. during
B. crowded
B. act
B. books
B. teacher

C. write
C. watch
C. loving
C. make
C. yet
C. of
C. free
C. take
C. movies
C. people

D. find
D. look
D.rich
D. know
D. still
D. for
D. necessary
D. depend
D. homework
D. himself

填空题

光缆因为信号靠光波传送，所以光缆抗电磁干扰性极好、保密性强、速度快以及（）。