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判断题
买方信贷是出口方银行向出口商提供贷款,然后由出口商转向进口商(即买方)提供的信贷。( )
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参考答案:
错
补全对话,情景问答
给下列的问句选择合适的答语。
( ) 1. What's your room like?
( ) 2. Is this your bedroom?
( ) 3. What can you see in the room?
( ) 4. What's this?
A. It's an air-conditioner.
B. I can see a big closet.
C. Yes, it is.
D. There is a mirror and two end tables.
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问答题 简答题
在聚合物的生物降解中酶起到哪些作用?
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