罐区溶剂油罐的压力指标控制在()Pa。 A.1000~1500 B.500~1000 发布时间:2018-02-21 19:19 │ 来源:www.tikuol.com 题型:单项选择题 问题: 罐区溶剂油罐的压力指标控制在()Pa。A.1000~1500B.500~1000C.600~1200D.越大越好
题型:单项选择题 Once ______ by the expert, the girl will improve her English in a few months.A.being taughtB.to be taughtC.taught D.teaching 查看答案