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【多选题】
我国国防武装力量的组成是 ( ),( )。A.
中国人民解放军现役部队和武装警察部队
B.
民兵、预备役
C.
中国人民解放军，武装警察，公安部队
D.
常备力量和后备力量
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【单选题】听力原文：M: Do you think home video players will replace movie theatres and force them out of the entertainment business? W: Movie's certainly faced with the grave challenge from the DVD industry，that's w...
A.
It is being forced out of the entertainment industry．
B.
It should change its concept of operation．
C.
It should revolutionize its technology．
D.
It is a very good place to relax．
【简答题】Watch the video clip and answer the following questions. 1. What are the consequences or reasons of metals being so easy to recycle by humans? ----M ost of what ___1___ from our end-of-life stuff, if...
【多选题】关于MHC-II类分子的叙述,下列哪些不正确?
A.
两条多肽链均为MHC编码
B.
主要表达于抗原提呈细胞的表面
C.
广泛分布于各种有核细胞的表面
D.
参与经典外源性抗原的提呈
E.
参与经典内源性抗原的提呈
【多选题】关于MHC-II类分子的叙述,下列哪些正确?
A.
两条多肽链均为MHC 编码
B.
主要表达于抗原提呈细胞的表面
C.
广泛分布于各种有核细胞的表面
D.
参与外源性抗原的提呈
E.
可交叉提呈内源性抗原
【多选题】关于MHC-II类分子的叙述,下列哪些不正确?
A.
两条多肽链均为MHC编码
B.
主要表达于抗原提呈细胞的表面
C.
广泛分布于各种有核细胞的表面
D.
参与外源性抗原的提呈
E.
参与内源性抗原的提呈
【简答题】A medium is just (1)___________ , a means , in other words, (2)_______________________ . A message in this context being any kind of information, from a phone call, through viewing a film, to reading ...
【简答题】wechat.mp4 In the 21st century, we ’ ve lived with many wonders and got so used to them that we hardly notice that they have greatly changed our lives. Here is one. Watch a video clip to find out how ...
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