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【单选题】
一般路堤是指（ ）。A.
填土高度在12m以下的路堤
B.
填土高度在20m以内的路堤
C.
采用1：1.5的路堤。
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反馈参考答案：
举一反三
【单选题】为何发酵液中细胞非常稳定,在进行分离纯化之前进行预处理?错误的是:
A.
细胞具有双电层
B.
发酵液是非牛顿力学流体
C.
菌体浓度太低
D.
由于微生物细胞具有悬浮性
【单选题】One of the greatest benefits of Internet friendships is that they are based on common interests, ________ appearance, age or popularity.
A.
more than
B.
rather than
C.
or rather
D.
more or less
【简答题】为何要对发酵液进行预处理？预处理发酵液的方法有哪些？
【单选题】One of the greatest benefits of stamp－collecting is that they are based on common interests，________ appearance，age or wealth.
A.
other than
B.
or rather
C.
rather than
D.
instead
【单选题】Common interests ______ this country with many others during the war.
A.
associated
B.
allied
C.
combined
D.
united
【简答题】发酵液为什么要进行预处理?
【简答题】在进行产品的分离纯化制备之前,为什么要对发酵液进行预处理?
【单选题】But for their common interests, they_____ cooperated so smoothly in the investigation of the case.
A.
could have
B.
will not have
C.
could not have
D.
have not
【简答题】IPv6 默认路由用( )表示。
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