若大桥的净空高度为34米,当时当地的水位9米,剩余高度为1.2米,则该桥梁的允许通航 发布时间:2017-05-13 01:01 │ 来源:www.tikuol.com 题型:单项选择题 问题: 若大桥的净空高度为34米,当时当地的水位9米,剩余高度为1.2米,则该桥梁的允许通航船舶的水面高度应不超过()米。A、25B、23.8C、26.2D、32.8
题型:单项选择题 从方框中选择恰当的句子下面的对话。(其中有两项是多余的)A: Good morning, Bill. B: Hi, Nick. A: 1_______B: Yes, I like playing basketball. How often do you exercise?A: 2_______B: Do you get up early in the morning?A: Yes, I get up at 6:30 every morning. And then I play basketball for half an hour. B: 3_______A: I go to bed at 10:00. 4_______B: I see. You look strong. Let's play basketball together tomorrow morning, OK?A: All right. 5_______ See you.B: See you tomorrow. A. Do you Play basketball every morning?B. Let's meet at 7 a.m. C. What time do you go to bed at night? D. I played basketball yesterday. E. Do You often stay up late? F. I have a healthy lifestyle.G. I exercise every day. 查看答案
题型:单项选择题 如图为A、B、C三种固体物质在水中的溶解度曲线.据图回答:(1)40℃时,A物质的溶解度为______g;(2)50℃时,B、C两物质的饱和溶液中溶质质量分数更大的是______;(3)要从C的饱和溶液中得到大量的晶体,应采用结晶方法中的______. 查看答案
题型:单项选择题 下列叙述中正确的是( )。A.顺序存储结构的存储一定是连续的,链式存储结构的存储空间不一定是连续的B.顺序存储结构只针对线性结构,链式存储结构只针对非线性结构C.顺序存储结构能存储有序表,链式存储结构不能存储有序表D.链式存储结构比顺序存储结构节省存储空间 查看答案