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【多选题】
关于Ig的功能区,下列哪些是正确的?
A.
Ig功能区是H链与L链折叠形成的球形结构
B.
L链有2个功能区,H链有4个功能区
C.
Ig的多肽链折叠后形成β一筒状结构
D.
各个功能区氨基酸序列有高度同源性
E.
各功能区具有不同的功能
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A.
Yes, she loves meeting the man's parents.
B.
No, she refused to meet his parents.
C.
No, but she'll let him know that evening.
D.
Yes, she accepted it willingly.
【单选题】东北三宝的主要产地之一是( )。
A.
白山市
B.
辽宁省
C.
黑龙江省
D.
江苏省
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A.
便于发布多媒体信息
B.
提供诸如HTML等技术
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便于电商客户检索信息
D.
便于提供安全交易环境
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A.
铸铁
B.
低碳钢或低碳合金钢
C.
铸钢
D.
中碳钢或中碳合金钢
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A.
hope
B.
hoped
C.
will hope
D.
would hope
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A.
morality
B.
frustration
C.
principle
D.
campaign
【单选题】bump
A.
n. 存在;生存
B.
n. 街区;木块;石块;大楼;一组;阻塞(物);障碍(物)
C.
v. 碰撞;颠簸而行;提高 n. 肿块;撞击;表面隆起
【单选题】If I __________you. I would buy a big house for my parents.
A.
be
B.
am
C.
was
D.
were
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A.
sold
B.
maintained
C.
memorized
D.
sacrificed
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A.
Sorry, I wouldn’t.
B.
Yes, I’d like.
C.
Yes, I would do .
D.
Well, I’d like to.
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