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【判断题】
滤清方式有粗滤、细滤、沉淀三种A.
正确
B.
错误
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【单选题】—You could always put the decision off a little bit longer. —_____ If I leave it much longer I might miss my chance.
A.
That’s reasonable advice.
B.
Isn’t it a good idea?
C.
Do you think so?
D.
I can’t agree more.
【简答题】在 MATLAB符号计算中 y 的二阶导数表示为 。
【单选题】听力原文：W: I need a car to use this weekend. M: You could always rent one. Q: What does the man mean? (14)
A.
She could use his car.
B.
Last week she. let him drive.
C.
She always drives rental cars.
D.
It's possible for her to rent a car.
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