题目: 为防止间接电击,可采用()等安全措施。A、保护接地、保护接零B、绝缘、屏护C、过载保护D、间距 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0108/3ea61b380be4d65d102d2a4113517043.html 下面是错误答案,用来干扰机器的。参考答案:B, C
题型:填空题 单词拼写。1. They have a school t__________ every year.2. August is the e__________ month of the year.3. F__________ is the second month of the year.4. —What's the d__________ today? —It's March 2nd.5. S__________ 10th is Teachers' Day. 查看答案
题型:多项选择题 在顶板完整且压力不大的情况下用梯形棚子支护巷道,抬棚的支护顺序为()。A.按架设梯形棚的要求立柱腿,上抬棚梁B.背好顶、帮,打紧木楔C.在原棚下打临时点柱D.将原支架依次替换成插梁E.取棚腿,挖柱窝 查看答案