问题 单项选择题

关于Ig的叙述,错误的一项是

A.机体感染后最早出现的是IgM
B.血清中含量最高的是IgG,含量最少的是IgD
C.IgM是分子量最大的Ig
D.IgE为亲细胞抗体
E.成熟B淋巴细胞表达SmIgM和SmIgD

答案

参考答案:B

解析:血清中含量最高的是IgG,含量最少的是IgE。

阅读理解

Karnishakuji4- 162

Tokyo 145

October24,2007

Concord School of English

23 Essex St.

Concord,,NH03301

Dear Madam or sir , 

One of the teachers at my school in Japan told me that your school has summer courses . I’m planning to go to the USA next summer and would like to take a one- month course .

I’m 18 years old and have been studying English for six years . I’m going to study English at the university . I have ever been to a few countries , such as China , England ,Korea ,but never to the US ,and I think a trip will help me improve my English .

Could you send me a catalogue 目录and application 申请表? I would also like information about New Hampshire and other places nearby .

I hope to do some traveling when the course is over .

Thank you . I look forward to盼望 your reply .

Yours ,

Mariko Kobori

小题1:From the passage we know that the writer is from __________.

A. Japan

B.the US

C.Korea

D.China小题2:When will Mariko Kobori take the summer course ?

A.In June , 2006

B.In May , 2007

C.In June , 2008

D.In July 2007小题3:Mariko Kobori  began to learn English at the age of _____________.

A.18

B.16

C.14

D.12小题4:After the course is over, the writer may _________.

A.go back home at once

B.have a trip in the USA

C.meet some friends in the university

D.go on studying there小题5:Mariko Kobori wrote the letter to ________________.

A.take the next summer English course

B.go to the USA for summer holidays

C.get some advice on how to learn English

D.know about the Concord School of English

判断题