急性上呼吸道感染如合并细菌感染，以下哪种不常见（） A.肺炎克_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

急性上呼吸道感染如合并细菌感染，以下哪种不常见（）

A.肺炎克雷伯杆菌

B.溶血性链球菌

C.流感嗜血杆菌

D.肺炎链球菌

E.葡萄球菌

答案

参考答案：A

解析：急性上呼吸道感染如合并细菌感染，以溶血性链球菌多见，其次为流感嗜血杆菌、肺炎链球菌和葡萄球菌。

完形填空

完形填空。

     I'm Susan White. I am 1  American. I'm a new student  2  Hong Xing Middle School. I'm in Class Fifteen,
  3 . My teacher is  4 I have two friends here. They  5 . They are 6 . We are  7 in  8  school. Li Ping is  9
this morning. He helps the teacher put books, pictures  10 her room. He is a good boy.

( )1. A. a
( )2. A. in
( )3. A. One Grade
( )4. A. Miss yang
( )5. A. English
( )6. A. twin
( )7. A. all
( )8. A. same
( )9. A. on duty
( )10. A. to

B. one
B. on
B. grade 1
B. Mr Jeff
B. are twelve
B. twin sisters
B. everyone
B. an
B. in duty
B. in

C. the
C. to
C. Grade One
C. Miss Ann
C. good
C. twins sisters
C. both
C. the same
C. duty
C. like

D. /
D. for
D. Grade one
D. Mr King
D. twelve
D. twin sister
D. too
D. good
D. to duty
D. for

单项选择题

一般而言，只要产品价格高于以下（）成本时厂商仍会进行生产经营。

A.平均成本

B.平均可变成本

C.边际成本

D.平均固定成本