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【判断题】
在厌氧生物处理中，碳氮比越高越好A.
正确
B.
错误
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【单选题】—I don' t like to complain, but I bought this camera last week and it' s stopped working.—Hum—yes, it' s faulty. Do you have your receipt? We can either exchange the camera or offer you a credit note....
A.
I'd rather have a refund
B.
I'd like a new camera
C.
there must be a discount
D.
I must get something free
【简答题】I am working with a computer company. My family lives near the railway station, and within five minutes’ walk to a shopping 11 _______________. We live in a flat with 3 bedrooms and a very large 12 __...
【简答题】11) My company, like hundreds of others around the world, is in the midst of such a(n)____ from physical retail outlets (实体零售店) to online e-commerce.
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