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【简答题】
常用的萃取方法有:萃取、 和多级错流萃取。
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皮皮学刷刷变学霸
举一反三
【简答题】Tinahas four lessons the morning, no lessons noon, and two lessons the afternoon.A. in;in ;in B. on;in;on C. in;at; in D. on;in; at
【单选题】I have _ English lessons a week. And the _ lesson today is English. [ ]
A.
four; five
B.
four; fourth
C.
fourth; fourth
【单选题】There are _____ new words in Lesson Four than in Lesson One. [ ]
A.
many
B.
much more
C.
many more
D.
more a few
【判断题】It can be inferred in lesson four that the most effective way of enhancing your interview performance is to keep practicing.()
A.
正确
B.
错误
【简答题】工作分析的效果评价取决于()
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