一个三角形/五边形，一般的投影角度（非平行和垂直）的正投影图形还是三角形/五边形。
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一个圆形，垂直的正投影图形还是原来的图形，但直径会变小。
A. 对
B. 错
一个圆形，非垂直 /水平的正投影图形会变为椭圆形状。
A. 对
B. 错
My recent experience is so different from your experience several decades ago that they are not ____.
A. comparable
B. agreeable
C. sustainable
D. desirable
His proposal sounds attractive, but unfortunately it is not ____ to the management problems of a small company.
A. comparable
B. applicable
C. sustainable
D. desirable
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