4．所谓视差，是当眼睛在目镜端上、下微动时，看到十字丝与目标的影像相互移动的现象。对错 - 查题网

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国家开放大学 / 建筑测量

4．所谓视差，是当眼睛在目镜端上、下微动时，看到十字丝与目标的影像相互移动的现象。

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用计算机绘图时，栅格捕捉的作用是为了得到屏幕上( )。 (A)线段的端点(B)图形的特性(C)两点间的距离(D)准确的坐标点[参考答案：D] 分值：10得分：分系统自动批改于2020年9月18日 14点40分园林制图

13、Large modern cities are too big to control. They impose their own living conditions on the people who live in them. City-dwellers（居住在城市的人）have to adopt an unnatural way of life. They lose touch with the land and the rhythm of nature so that they are hardly conscious of the seasons. A few flowers in a public park may remind people that it is spring or summer and a few leaves on the roadside may remind them that it is autumn. Beyond that, what is going on in nature seems totally unrelated to them. All the simple, good things of life, such as sunshine and fresh air are far away. Tall buildings blot out（把…遮住） the sun, and waste gases from cars pollute the air. Even the distinction between day and night is lost. In the night, it is almost as bright and noisy as it is in the day and people are busy with what they hope to deal with. The funny thing about it all is that city-dwellers pay dearly for living in the city. The prices for houses are so high that it is often impossible for ordinary people to buy a house of their own. High rents must be paid for small flats which even country hens would dislike to live in. Moreover, the cost of living is very high. Everything you buy is likely to be more expensive than it would be in the country.统考英语阅读理解

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