试题与答案

下列有关人体免疫细胞的叙述,不正确的是[ ] A.一个浆细胞只能分泌一种特定的抗

题型:选择题

题目:

下列有关人体免疫细胞的叙述,不正确的是[ ]

A.一个浆细胞只能分泌一种特定的抗体

B.吞噬细胞在特异性免疫中,没有特异性识别能力

C.T细胞受到抗原的刺激后,能分泌淋巴因子攻击被病原体入侵的靶细胞

D.仅受到抗原的刺激,B细胞不能分化成浆细胞和记忆细胞

答案:

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答案:C题目分析:10名初中毕业生的中考体育考试成绩如下:35 、36 、36 、36 、36、37 、38、39、39、40,它已是按从小到大排列的,这组数据的最中间的数是36、37,这些成绩的中位数是36.5 点评:本题考查...

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were very lowly.  He was the youngest of eight children.  His father
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Jack saw a   7    in scrap metal (废弃金属). He bought bits of
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     Jack    9    working hard. After one year he succeeded in
 10     the ~ 100.
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something "    13   ". With all his money it was   14    to build
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Castle" was built in the   15   of the Lancashire countryside.  It
was one of the finest buildings in the country.
      Jack has recently sold "Baines Castle" for ~ 500 million,
 16    Jack still can't get used to  17   the good life. He can
often    18    drinking with the locals at the local pub(酒吧). "I
remember being very  19   as a child, but never   20    as a
child,"says Jack,"and I will never forget where I came from and
who I am. "
( )1. A. job          
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( )5. A. seeing      
( )6. A. school      
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B. like    
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