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单项选择题
下列哪一项不属于影响挤压筛分破碎效果的因素。()
A.破碎辊的间隙
B.振动筛筛网孔径
C.筛网的松紧程度
D.挤压压力
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B.警告标志
C.指令标志
D.提示标志
单项选择题
下列说法中属于衬覆金属保护层防腐技术的有。()
A.电镀法
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D.上述说法均正确
未知题型
Instructions: You are required to write an application letter to the human resources manager of one pharmaceutical company, Mr. Ray Hanks for a pharmaceutical sales representative job. You should explain why you choose this company and why you are suitable for this sales representative job, including your qualifications such as educational background, working experience and so on.
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