题目内容

将滤浆冷却可提高过滤速率。

A. 对
B. 错

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利用电力来分离非均相物系可以彻底将非均相物系分离干净。

A. 对
B. 错

在其他条件相同的情况下,干燥过程中空气消耗量L通常,在夏季比冬季为大。

A. 对
B. 错

-You have made a ________, so you have to keep it. -Sure. You can trust me. (1.0)

A. choice
B. list
C. promise
D. decision

A number of stars _ going to the concert, but the number of them ___unknown.(1.0)

A. are; are
B. is; is
C. are; is
D. is; are