预制箱梁底模预留反拱的线性是(). A.抛物线 B.圆曲线 C.缓和曲线 发布时间:2017-08-11 10:20 │ 来源:www.tikuol.com 题型:单项选择题 问题: 预制箱梁底模预留反拱的线性是().A.抛物线B.圆曲线C.缓和曲线
题型:单项选择题 下列与生活密切相关的化学知识中,说法正确的是[ ]A.可用亚硝酸钠代替食盐作调味品B.可用灼烧法区分羊毛和合成纤维C.只能通过吃药的方法补充钙元素D.蔬菜和水果不能为人类提供营养素 查看答案
题型:单项选择题 —How many practical plans has your deskmate made this week?— . All have turned out disappointing.A.NoneB.NothingC.NobodyD.No 查看答案
题型:单项选择题 材料:营业税改征增值税是国家实行结构性减税的重头戏,但是它的推行却困难重重,像酒楼做出的一桌饭菜,成本要素的价格是隐蔽的和不稳定的,税务部门要对一个服务产品的增值额进行核算很困难。为此,国家把上海作为先行试验点,在总结经验的基础上再向北京、天津和广东等地推广,采取“分档分行业税率”等具体措施加以落实,使这项改革在曲折中得以前进。结合材料,运用唯物辩证法知识,谈谈你对“营改增”的认识。(12分) 查看答案
题型:单项选择题 Part 2 ·Send a memo to inform your upper management of these facts as: ☆ That some of your staff are not quite for the idea of installing an air-conditioner in your office, as some don’t like the unfresh air in a conditioned room and some complain that air-conditioned working place make their skin feel dry and back ache. 查看答案