带传动中,皮带上最大应力发生在( )的接触点处。A.紧边与小轮 B.紧边与大轮 C 发布时间:2018-07-13 03:34 │ 来源:www.tikuol.com 题型:单项选择题 问题: 带传动中,皮带上最大应力发生在( )的接触点处。A.紧边与小轮B.紧边与大轮C.松边与小轮D.松边与大轮
题型:单项选择题 -Could you please come to help me _ dinner? -I’d like to. But I have to finish my work _ . [ ]A. make ; at first B. cook ; at first C. make ; first D. have ; first 查看答案