题目内容

根据回答，请选择问句。A. They are building a greenhouse.B. They are building a green house.--- Why are they so keen on green?

A. They are building a greenhouse.
B. They are building a green house.

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根据回答，请选择问句。A. Can you show me the blueprint?B. Can you show me the blue print?------ We are still working on it.

A. Can you show me the blueprint?
B. Can you show me the blue print?

以下哪些因素会直接影响到你对生物菌剂的选取、剂量的投放和投放方式的选

A. 受污染水体的水温
B. 受污染水体的pH值
C. 污染物种类和污染程度
D. 水体体积

Be careful!

Time is money.