The basic line thickness of the drawing refers to the thickness for the ( ) line
A: thin
B: semi-bold
C: bold
D: middle
A: thin
B: semi-bold
C: bold
D: middle
C
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举一反三
- the ratio between the thickness of the bold line and the thin line is .
- The ratio between the thickness of the thin line and the bold line is A: 4 B: 2 C: 0.5 D: 0.25
- A line has no thickness, only length anddirection.
- which of the following requirements for extension line is correct? A: it should be draw by bold solid line B: about 2 mm from the contour line C: a bout 2 mm beyond the dimension line D: Other lines in the drawing should not be used as the extension line. E: about 2-3mm in length
- The line width (thickness) of the cutting symbol should be ( ) A: 0.7b B: 1.0b C: 1.4b D: 2.0b
内容
- 0
Orebody thickness refers to the vertical or horizontal distance between .
- 1
A thin shell(薄壳) of radius r and thickness dr is shown shaded.
- 2
____<br/>is that we have to make a decision today. A: The bottom line B: The last line C: The first line D: The middle line
- 3
The middle C lies in? A: The lower 1st ledger line under the treble B: The 1st ledger line under the bass C: The upper 1st ledger line of the bass D: 2nd line
- 4
在CSS中，为<a>标记设置字体加粗的代码为____ A: a { font-weight: bold; } B: a { font-size: bold; } C: a { font-style: bold; } D: a { font-varian: bold; }