在混凝土或抹灰基层涂刷溶剂型涂料时,基层含水率最大不得大于( )。 A.5% B 发布时间:2018-01-14 15:49 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在混凝土或抹灰基层涂刷溶剂型涂料时,基层含水率最大不得大于( )。A.5% B.8% C.10% D.12%
题型:单项选择题 "If I worked not with my husband, I would have never met him." Writes Jodster.A.do not work, never meetB.have not worked, never have metC.hadn't worked, would never have metD.shouldn't have worked, I should have never met 查看答案
题型:单项选择题 小明同学利用圆珠笔杆、钢丝、细绳制成了如图所示的滑轮组用其匀速提升重物,不考虑摩擦、笔杆和绳重,下列说法正确的是( )A.拉细绳的力F等于钩码重力G的 B.拉细绳的力F等于钩码重力G的 C.拉细绳的力F等于钩码重力G的 D.拉细绳下降的距离是钩码上升高度的 查看答案