the ratio between the thickness of the bold line and the thin line is .
举一反三
- The ratio between the thickness of the thin line and the bold line is A: 4 B: 2 C: 0.5 D: 0.25
- The basic line thickness of the drawing refers to the thickness for the ( ) line A: thin B: semi-bold C: bold D: middle
- A line has no thickness, only length anddirection.
- In ___________, every line of the letter begins at the left margin, with a space of one line between paragraphs.
- A line is often skipped between the address and date.