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【单选题】
下列关于金类防腐剂的错误表述为A.
金类防腐剂的化学名为羟苯酯类
B.
金类防腐剂在酸性条件下抑菌作用强
C.
金类防腐剂混合使用具有协同作用
D.
表面活性剂不仅能增加金类防腐剂的溶解度，同时可增加其抑菌活性
E.
金类防腐剂无毒、无味、无臭，化学性稳定
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【简答题】There are more and more young people who wish ______.(去美国继续学习)
【单选题】More and more young people are held back from teaching __________. 查看材料
A.
its benefits
B.
their childhood memories
C.
their stress
D.
more training
E.
discipline problems
F.
because of low pay
【简答题】According to the latest report, more and more young people intend to learn _______ (economy) and social science.
【单选题】Some say yes and others say no; I don't know __________ to follow.
A.
whether
B.
what
C.
whom
D.
how
【单选题】Some people say jogging is good; ____ believe jogging does harm to people’s health.
A.
the others
B.
others
C.
other
D.
another people
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