奥氏体不锈钢多层多道焊时,层间温度(即各焊道间温度)应低于()℃。
A.350
B.250
C.150
D.60
参考答案:D
The two girls are getting on very well and share _____ with each other. [ ]
A. little
B. much
C. some
D. none
某工程需采购特种钢材10吨,出厂价为5000元/吨;供销手续费率l%,材料运输费50元/吨,运输损耗率2%,采购及保管费率为8%,则该特种钢材的预算价为()元。
A.56160
B.54000
C.56000
D.56040