单项选择题
A.0.2cmB.0.4cmC.0.5cmD.0.7cm
A.1.5cmB.2cmC.2.5cmD.3cm
A.1.5B/10+2cmB.1.5B/10+2.5cmC.1.5B/10+3.5cmD.1.5B/10+4.5cm
A.15~17cmB.12~13cmC.18~20cmD.20~22cm
微信扫一扫,加关注免费搜题