问题
单项选择题
锚杆托板与螺母之间必须使用（）
A、无要求
B、平垫
C、减摩垫圈
答案
参考答案：C
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锚杆托板与螺母之间必须使用（）
A、无要求
B、平垫
C、减摩垫圈
参考答案：C
Some people have very good memories, and can easily learn quite long poems by __heart__ . There are other people who can only __remember__ things that they have said again and again. A _good__ memory is a great help in learning a language. __Everybody__ learns his own language by remembering __what__ he hears when he is a small child. Some children __don’t_live_in their own country, and they seem to learn two languages ___almost__ as easily as one. In school it is not so easy to learn __a__ foreign language because students have so __little __time for it and they are busy with other lessons, too. A man’s mind is rather like a camera, but it takes photos not only _of_ what we see but also of what we feel, hear, smell and taste. When we take a real photo__with__a camera, there is much to do when the photo is finished and __ready__to show to our friends. In the same way there is much work __to be done__ before we can keep a picture __forever__ in our minds.
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