题目内容
边际报酬递减规律是说，当一个要素固定时，随着可变要素的增加，边际产品一开始就递减。
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规模报酬递减表明，当企业规模扩大时，产量反而减少，因此是规模不经济的。
Fill in the blanks with the words given below. Change the form where necessary. Each word can be used only once.adoptfocustransformregulatetypical1. It is difficult to conclude what a(n)____________ student does in his spare time because every student has different interests.2. Some of your suggestions have been ___________, but others have been turned down as they are not workable.3. When you do yoga, try to __________ your breathing. Don't breathe too fast and make sure you breathe only through your nose.4. All of a sudden, he lost his interest in engineering, and _______________ his attention on learning a foreign language.5. People are beginning to realize that to _______________ nature at will is the biggest mistake that man has ever made.
(单项选择)规范规定桥梁静载试验主要控制测点的相对残余变形(或应变)不宜大于( )。
(单项选择)规范规定桥梁静载试验卸载后,其扩展宽度应闭合到容许值的( )。
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