鼠疫杆菌的致病物质有（） A.FI抗原 B.V-W抗原 C.MT抗原 D.保护性抗原_爱下问搜题

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问题多项选择题 X型题

鼠疫杆菌的致病物质有（）

A.FI抗原

B.V-W抗原

C.MT抗原

D.保护性抗原

E.水肿因子

答案

参考答案：A, B, C

完形填空

完形填空。

     June  1 a sister. Her name is Lisa. They are Chinese. June is seven and Lisa is nine  2 old. June's
birthday is July 21st. Lisa was born (出生)  3 July, too. Now they are in the same school. They usually go
to school  4 seven o'clock in the morning. Lisa's  5 subject is English and she  6 English very well. June
can play the guitar. So she wants  7 the School  8 Club. After school June likes to play chess  9 Lisa.
They often go to  10 on weekends.

( )1. A. is
( )2. A. year
( )3. A. on
( )4. A. at
( )5. A. like
( )6. A. say
( )7. A. join
( )8. A. Sports
( )9. A. and
( )10. A. movie

B. have
B. years
B. at
B. on
B. 1ikes
B. speak
B. to join
B. Swimming
B. to
B. the movie

C. has
C. (不填)
C. of
C. in
C. favorite
C. says
C. joins
C. Music
C. with
C. movies

D. like
D. months
D. in
D. of
D. favorite's
D. speaks
D. joining
D. Study
D. about
D. action movie

单项选择题

原发性慢性再生障碍性贫血治疗的首选措施是（）。

A.雄性激素

B.肾上腺皮质激素

C.维生素B

D.免疫抑制剂

E.脾切除