单项选择题
A.185R14 B.6.00-13 C.6.00-14 D.185R15
A.1倍 B.1.5倍 C.2倍 D.3倍
A.3.5寸/7寸 B.3.5寸/8寸 C.3.5寸/10寸 D.7寸/10寸