标线长度的允许偏差为( )mm。A.±10 B.±20 C.±40 D.±50 发布时间:2017-06-14 07:21 │ 来源:www.tikuol.com 题型:单项选择题 问题: 标线长度的允许偏差为( )mm。A.±10B.±20C.±40D.±50
题型:单项选择题 from heart attack for years, Professor Wang has to take some medicine with him wherever he goes. [ ]A. SufferedB. Suffering C. Having sufferedD. Being suffered 查看答案