机房内用电应注意安全,严禁使用()和(),严禁产生明火和有毒挥发气体;机房内临时用电 发布时间:2017-05-13 13:50 │ 来源:www.tikuol.com 题型:填空题 问题: 机房内用电应注意安全,严禁使用()和(),严禁产生明火和有毒挥发气体;机房内临时用电应在指定电源位置接入市电,严禁接入现网在用供电系统,用电人员离开现场须关闭电源。
题型:填空题 13+14=______58÷5=______13+12-13+12=______1.25×8=______0.15×1.2+3.8×15%=______2-710÷716=______0.25+0.75=______23+23×0=______(12-45)×13=______4505÷5=______24.3-8.87-0.13=______. 查看答案
题型:填空题 He was thirsty, so he poured some water _____ his glass. [ ]A. into B. over C. in D. out of the 查看答案