皮皮学，免费搜题
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【多选题】
既有抗体又有补体参与的反应有:A.
Ⅰ型
B.
Ⅱ型
C.
Ⅲ型
D.
Ⅳ型
E.
不定型
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皮皮学刷刷变学霸
举一反三
【单选题】We are sorry to have to complain of the quality of the shipment of wheat, but it is far ______ the sample you sent us.
A.
superior to
B.
inferior to
C.
prior to
D.
prior of
【单选题】毛泽东时代社会主义建设取得的成就是( )。
A.
建立了独立的比较完整的工业体系和国民经济体系
B.
教育、卫生、社会福利等事业得到了很大的发展
C.
我国既无内债，又无外债
D.
以上三点都是
【单选题】We are sorry to have to complain of the quality of the shipment of wheat , but it is far () the sample you sent us.
A.
superior to
B.
inferior to
C.
prior to
【简答题】We are sorry to have informed you of a delay in executing your order No．118 of June 22．Our country has recently put an embargo on the export of various medicines to the USA and we have to obtain a spe...
【简答题】We are sorry to have kept you______(wait) for 2 hours.
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