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【多选题】
Ig的生物学功能包括：A.
与相应抗原特异性结合
B.
IgG1,IgG2,gG 3,IgM通过经典途径激活补体
C.
IgG,IgA,IgE能与细胞上FcR结合
D.
IgE介导I型超敏反应
E.
抗原抗体复合物形成后,Ig可溶解靶细胞
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举一反三
【单选题】听力原文：W：Oh, dear，I wonder where I left my hand hag! M：Maybe you didn't bring the bag. Most probably it's still lying on the desk in your office. Q：What happened to the woman? (3)
A.
She didn't bring her handbag with her.
B.
She was telling a lie.
C.
She was still in the office.
D.
She couldn't find her handbag.
【多选题】关于放射性药品的管理要求说法正确的是
A.
国家对放射性药品实行合理布局、定点生产
B.
放射性新药是指国内外首次生产的放射性药品
C.
经CFDA审核批准的含有半衰期放射性核素的药品，可以边检验边出厂
D.
严禁任何单位和个人随身携带放射性药品乘坐公共交通运输工具
【简答题】A．Crude attempts were made to educate them. B．They were used for medical experiments. C．They were used as laborers. D．They were locked away like criminals.
【单选题】Thousands of products ______ from crude oil are now in daily use:
A.
to make
B.
be made
C.
making
D.
made
【单选题】Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall ______ the system in accordance with the requirements of that Regulation．
A.
operate
B.
check
C.
install
D.
overhaul
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