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【多选题】
机体免疫应答的类型包括( )。A.
固有免疫应答
B.
适应性免疫应答
C.
反应
D.
免疫抑制
E.
自身免疫应答
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举一反三
【简答题】I began to send my first e-mail when I was 17. I discovered Google 5 years later. Now, I use the Internet all the time. Internet has become so popular that 90 percent of 12-to-17-year-olds in the Unit...
【单选题】I was overcome by ________ at the check-out counter when I discovered I had left my wallet at home.
A.
polemics
B.
fraction
C.
piety
D.
chagrin
【简答题】When I discovered the joy of the scientific method, I a____it to language.
【简答题】阅读理解。 I began to send e-mails when I was 17. I discovered Google 5 years later. Now, I use the Internet all the time. Internet has become so popular that 90 percent(％) of 12-to-17-year-olds in the ...
【单选题】月经终止前,内膜表面修复是由何种细胞分裂增生所致( )。
A.
基底层基质细胞
B.
基底层子宫腺残端的细胞
C.
基底层血管残端的内皮细胞
D.
子宫颈粘膜柱状上皮细胞
E.
基底层基质细胞和子宫颈粘膜柱状上皮细胞
【单选题】日常生活中的一些铁制品经常会被锈蚀。下列做法不能起防锈作用的是 ① 在铁制品表面镀锌；②在铁制品表面涂油；③保留铁件表面的铁锈作保护层；④在铁器表面刷油漆；⑤自行车脏了用清水冲洗；⑥用废酸液冲洗铁制污水管道；⑦切完咸菜后，尽快将菜刀洗净擦干。 [ ]
A.
②⑤
B.
③⑤⑥
C.
①③⑥
D.
②⑥⑦
【简答题】阅读理解。 When I was quite young, I discovered that somewhere inside the telephone lived an amazing person- 'Information Please' and there was nothing she did not know. One day while my mother was out, I ...
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