All text shall be prepared in one or two columns with justification at the discretion of the manufacturer, however, two columns are preferred for ease of reading.
A.C The manufacturer shall prepare all text in either one or two columns with justification at his own discretion, but two columns are preferable for readability. B.Manufacturers shall prepare all text both in one and two columns separately; however, two columns are better for reading. C.According to the manufacturer explanations all text shall be prepared in one or two columns, however, two columns have better visual effect.正确答案A
