题目内容

The side edges of a cylinder is

A. parallel
B. intersect
C. on a plane
D. alignment

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Which line is used to draw the imaginary line

A. Dould dashed dotted line
B. Dashed line
C. Thin line
Dashed line

The size of A3 sheet is

A. 594⌧841
B. 210⌧297
C. 420⌧594
D. 297⌧420

When the length of a object is 1000mm,The drawing scale is 1:20 ,then the size we draw on the sheet should be

A. 100
B. 1000
C. 50
D. 20

Which one is not a basic solid

A. stairs
B. cyinder
C. prism
D. pyramid