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单选题
890、原理图必须有足够的尺寸,使图例、符号、装置、代码等都能被视力正常的人看清应尽量避免使原理图翻页。
A
The schematic diagram must be of sufficient size that legends, symbols, devices, codes etc., are readable by persons with normal vision. Turn-page schematic diagrams shall be avoided to the extent practical.
B
The schematics symbols, devices, codes etc. must be legible, so people with normal vision should avoid turning the schematic pages as much as possible.
C
Schematics must be readable to a normal visioned person, so legends, symbols devices, codes, etc., should be of sufficient size. The schematic diagram should be designed to turn over the page when the content is necessary.
答案解析
正确答案：A
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