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【简答题】
无土栽培是解决土壤连作障碍的有效手段,当前,土壤连作障碍主要表现为土壤( )化、土壤( )化、土壤( )、( )病害严重、( )作用等。(注:第一个空填4个字;第二个空填1个字;第三个空填2个字;第四个空填2个字;第五个空填4个字)
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反馈参考答案：
举一反三
【简答题】只要口渴就提示体内津液不足。
【简答题】要将某文档中的中文字体统一设为楷体，西文字体统一设为Times New Roman，该如何操作？
【单选题】Which of the following is a common reason for new product failure?
A.
incorrect estimation of the market size
B.
low product development costs
C.
ineffective social marketing campaigns
D.
low selling prices of products
【单选题】Which of the following is a common reason for new product failure?
A.
incorrect estimation of the market size
B.
low product development costs
C.
ineffective social marketing campaigns
D.
low selling prices of products
E.
patent ownership exclusively held by the company
【单选题】Which is not correct about new product stage:
A.
The product is sold at home only
B.
The product is produced and consumed only in the domestic market
C.
Labor costs play an important role
D.
The product meets the domestic high-income demands
【单选题】Which of the following is a common reason for new product failure?
A.
incorrect estimation of the market size
B.
low product development costs
C.
low selling prices of products
D.
patent ownership exclusively held by the company
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