题目内容

构件的强度是指

A. 构件抵抗破坏的能力
B. 构件抵抗变形的能力
C. 构件在外力作用下保持其原有平衡形态的能力
D. 构件在确定的服役期内不发生疲劳破坏

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Fill in the blanks with the words given below, change the form where necessary.coach, agency, bargain, deserve, code1.The women in the market often away for hours.Her encouraged her throughout the marathon race2.Students must observe the of the school.3.The work hours in the travel are too long.4.You a rest after all that hard work.

抗生物质残留量检验常用的方法有()()两种:

A. 酒精检验法
B. TTC实验法
C. 抑菌圈法
D. 动物实验法

当牛奶的PH=4.6沉淀的蛋白质是( )

一部分人饮用牛奶时产生腹胀腹泻呕吐的症状主要与牛奶中的( )有关

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