4DCr多用在()零件。A.量具 B.螺栓 C.机床床体 D.铣刀 发布时间:2017-10-18 10:02 │ 来源:www.tikuol.com 题型:单项选择题 问题: 4DCr多用在()零件。A.量具B.螺栓C.机床床体D.铣刀
题型:单项选择题 - Could you tell me why I am constantly yawning this afternoon? -Yawning ______ an indication that your body lacks oxygen and needs a rest. [ ]A. acts as B. serves as C. functions as D. plays as 查看答案