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【单选题】
I would appreciate________, to be frank, if the goods could be delivered as soon as possible. [ ]A.
you
B.
that
C.
it
D.
myself
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皮皮学刷刷变学霸
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【简答题】配制牛肉膏蛋白胨琼脂培养基的原料有哪些___、___、___、___和___。
【单选题】下列有关绝热、吸声(隔声)材料内容中，哪一项是错误的（ ）。
A.
矿渣棉导热系数约0．052，不燃、价格低，但吸水性大、弹性小
B.
膨胀珍珠岩使用温度为-200～800℃
C.
多孔性吸声材料对高、中频声音吸声效果较好
D.
墙体单位面积质量增加一倍，则墙体的隔声量增加10dB
【单选题】Let me give you a_________of how the camera works.
A.
publication
B.
solution
C.
negotiation
D.
demonstration
【简答题】听对话，选择正确答案。 1. Who is calling? [ ] A. Mary. B. Mike. C. Mary's husband. 2. Why will Mike hold a party? [ ] A. He has got a new car. B. He has passed the exam. C. He has moved. 3. When will the...
【单选题】—Could I borrow your camera? —________, but please give it back by Saturday.
A.
I'm sorry
B.
Of course
C.
Certainly not
D.
No, thanks
【单选题】--Could I borrow your camera? --______, but please give it back by Satureday.
A.
I am sorry
B.
Of course
C.
Certainly not
D.
No, thanks
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