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【单选题】
关于细菌外毒素的说法不正确的是( )A.
主要成分是蛋白质
B.
亲嗜部位具有特异性
C.
对宿主具有致死性
D.
对宿主具有致热性
E.
可制备类毒素
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皮皮学刷刷变学霸
举一反三
【单选题】Some people are too particular about school records, insisting that every applicant ______ all diplomas from elementary to university.
A.
has
B.
will have
C.
should have
D.
must have
【简答题】两种材料间以什么样的方式进行热传递?
【单选题】Some people are too particular about school records, insisting that every applicant ______all diplomas from elementary school to university.
A.
has
B.
will have
C.
should have
D.
must have
【判断题】对确实无法收回的应收款项报经董事会批准后确认为坏账,其确认标准如下 : ( 1 )因债务人破产或死亡,以其剩余财产或遗产清偿后,仍不能收回的应收款项; ( 2 )因债务人逾期未能履行偿债义务超过 3 年并且确定不能收回的应收款项。
A.
正确
B.
错误
【单选题】Some people are too particular about school records, insisting that every applicant ______ all diplomas from elementary school to university.
A.
has
B.
will have
C.
must have
D.
should have
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