入炉氧化铁皮除成分和粒度要求外,还应干燥、洁净、无油污。 发布时间:2019-11-08 18:35 │ 来源:www.tikuol.com 题型:判断题 问题: 入炉氧化铁皮除成分和粒度要求外,还应干燥、洁净、无油污。
题型:判断题 It's very cold. But there are people playing outside. [ ]A. a few B. few C. a little D. little 查看答案
题型:判断题 —Another cup of coffee? That’s your third since lunch.—Yeah, well, I ____ all night preparing for my history exam. I can hardly keep my eyes open.A.stayed upB.have stayed upC.have been staying upD.will stay up 查看答案
题型:判断题 如图所示的直流电路中,E=6V,R1=100Ω,R2=50Ω,L=20mH,I1、I2分别为()。A.0.06A,0.12AB.0.18A,0AC.0.06A,0.08AD.0.12A,0.18A 查看答案