问题
填空题
天车上构件的内应力，主要由（）（）和（）三部分组成。
答案
参考答案：初应力；主应力；局部应力
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天车上构件的内应力，主要由（）（）和（）三部分组成。
参考答案：初应力；主应力；局部应力
Some people have very good memories（记忆力）and can ___learn quite long poems（诗歌）by heart. __ people have poor memories and can’t remember things ____they have said them over and over again. The famous English writer, Charles Dickens, said that he could walk down any long street in ____ and then tell you the names of all the shops he had __. Many great men of the world have wonderful memories. A good memory is a great help __a language. Everybody learns __ own language by remembering the things he heard when he was a small child. Some children like those who live in foreign countries with their parents, seem to learn two languages as ___ as they do one. In school it is not so easy for pupils to learn a second language because they have very __ time for it. Memory ___a diary that we keep every day.
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