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【单选题】
关于抗体和Ig的描述,下列哪项是正确的A.
免疫球蛋白都是抗体,但抗体不一定都是Ig
B.
抗体不是Ig
C.
Ig就是抗体,抗体就是Ig
D.
抗体均为Ig,但Ig不一定都是抗体
E.
Ig不是抗体
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举一反三
【简答题】根据变质岩的构造可将变质岩分为两类：（）和（）。前者常见的岩石类型有（）、（）、千枚岩和板岩；后者常见的岩石类型有大理岩和石英岩。
【简答题】新陈代谢包括 和 两个方面。
【单选题】Paragraph 4: Question What does the author mean by “... the sun never set without my thanking God for...”?
A.
The author says that he never felt grateful to God for what he learnt from his talented and dedicated professors. Here he exaggerates to give comfort to the father.
B.
The author says that every day he felt grateful to God for what he learnt from his talented and dedicated professors. Here he exaggerates to give comfort to the father.
C.
The author says that every day he felt happy for what he learnt from his talented and dedicated professors. He shows his thankfulness every day and the sun never set.
【简答题】Passage A This is a significant moment in our public conversation on marriage. By ruling a key part of the Defense of Marriage Act unconstitutional and choosing not to rule on the question of same-...
【简答题】新陈代谢包括 和 两个过程。
【单选题】某食品厂为增值税一般纳税人,6月从小规模纳税人处购进免税农产品的收购凭证上注明收购价为30000元,支付运输公司运费6000元,并取得了运输公司开具的专用发票。根据规定,该食品厂准予抵扣的进项税额为( )元。
A.
2420
B.
3960
C.
3260
D.
3062
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