题目: More than a dozen students in that school abroad to study medicine last year. [ ]A. sent B. were sent C. had sent D. had been sent 答案: 答案:B
题型:单项选择题 民用建筑使用丙类液体作燃料时,液体储罐总储量不应超过规范规定量,当直埋于高层建筑或裙房附近,面向油罐一面()范围内的建筑物外墙为防火墙时,其防火间距可以不限。A、2.0m B、3.0m C、4.0m D、5.0m 查看答案