尾矿坝坝体有软弱夹层或抗剪强度较低且背水坡较陡而造成的滑坡,首先应( )。 A.放 发布时间:2018-01-29 00:59 │ 来源:www.tikuol.com 题型:单项选择题 问题: 尾矿坝坝体有软弱夹层或抗剪强度较低且背水坡较陡而造成的滑坡,首先应( )。A.放缓坝坡 B.降低库水位C.在坝脚排水压重 D.固脚防滑
题型:单项选择题 6.Feb. 14,2010, to most Chinese, is not just_______day devoted to people in love, but also day to express their care to their family and friends.A.a; aB.a; theC.the; theD.the; a 查看答案