在圆形隧道的两孔隧道之间设置连接通道,连接通道的间距一般宜为()。 A.300~50 发布时间:2018-01-24 17:37 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在圆形隧道的两孔隧道之间设置连接通道,连接通道的间距一般宜为()。A.300~500mB.400~800mC.250~300mD.300~600m
题型:单项选择题 词汇。根据句子意思及首字母提示完成单词: 1. Walking is g _____ for your health. 2. Michael is so c _____ that he missed a good chance. 3. Take three pills e_____ time and twice a day. 4. Li Wei and I are good friends, we get a_______ well with each other. 5. SARS is a kind of serous d ________. 查看答案