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【多选题】
VOC包含A.
苯系物
B.
一氧化碳
C.
烃类化合物
D.
酚类有机物
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皮皮学刷刷变学霸
举一反三
【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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