公路隧道明洞填土应不小于( )m。A．1 B．2 C．3 D．5 发布时间：2017-06-10 20:56 │ 来源：www.tikuol.com 题型：单项选择题 问题： 公路隧道明洞填土应不小于( )m。A．1B．2C．3D．5
题型：单项选择题 阅读理解。Candy 收到一封笔友的来信，请仔细阅读后，帮她整理笔友的有关资料。 Hi, my name is Alice Johnson, and I am 15 years old. I'm from Boston, the United States. I can speak English and a little Chinese. I like swimming and painting. I want to join the art club. I don't like science. I think it is boring. My favorite subject is music. I have a brother-Bill. I have no sister. I like soccer very much. And my favorite team is Manchester United. My favorite player is David Beckham. Do you like him? Please write to me about yourself. Full name: 1._____From: 2._____ Nationality(国籍): 3._____ Favorite subject: 4._____ Favorite player: 5._____ 1._____ 2._____ 3._____ 4._____ 5._____ 查看答案
题型：单项选择题 如图所示，物体M恰能沿静止的斜面匀速下滑，现将另一个物体m放在M上，并与M一起运动。则正确的说法是 ( ）A．物体m受2个力作用B．物体m受3个力作用C．物体M将沿斜面加速下滑D．物体M仍能保持匀速运动 查看答案
