△ABC∥V面，则它在V面上的投影△a'b'c'≌△ABC
查看答案
投影面垂直面的积聚投影会平行于投影轴
A. 对
B. 错
一般位置平面的三个投影均为平面图形，且面积都比平面的实际面积小。
A. 对
B. 错
U2L1-12) What will Urbanization cause accoding to the discussion?
A. it will promote modernization.
B. Many poor people will appear in the city.
U2L1-13) Why is urbanization considered unprecedented?
A. Because of the number of people involved.
Because of its profound effects on the world.
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