气喷锌可分为乙炔喷镀和()。

题型:填空题

问题:

气喷锌可分为乙炔喷镀和()。

考点:桥隧工考试高级桥隧工高级桥隧工题库
题型:填空题

集合A={-1,0,1},B={x|x=m2+1,m∈R},则A∩B=______.

题型:填空题

短文改错。

     假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。

文中共有10处语言错误,每句中最多两处。错误涉及一个单词的增加、删除或修改。

增加:在此处加一个漏字符号(^),并在其下面写出修改后的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下画一横线,并在其下面写出修改后的词。

     注意:1.每处错误及其修改均仅限一词;

               2.只允许修改10处,多者(从第11处起)不计分。

Dear Mary,

     We've been pen friends for a year now. It's a fun, isn't it? This year I'm starting my

college life. I'm real excited. Everything will be different with things in high school. I'll

have more classes, and each of the class will be in a different classroom. In the dormitory

 I will have a locker which I can keep my textbooks, notebooks, coats and other thing.

This is my favorite thing about going college. Two students will have to share a locker.

I will like my friend Kim to be my locker partner. We're thinking of put our favorite pictures

on the locker door. Please sending me a new picture of yourself! OK?

     Well, write soon. Bye.

     Best wishes.

                                                                                                                       Cindy

_________________________________________________________________________

_________________________________________________________________________

题型:填空题

如图所示,有一带电粒子贴着A板沿水平方向射入匀强电场,当偏转电压为U1时,带电粒子沿①轨迹从两板正中间飞出;当偏转电压为U2时,带电粒子沿②轨迹落到B板中间;设粒子两次射入电场的水平速度相同,则两次偏转电压之比为

[ ]

A.U1∶U2=1∶8     

B.U1∶U2=1∶4

C.U1∶U2=1∶2

D.U1∶U2=1∶1

题型:填空题

省域城镇体系规划的组织编制和审批部门正确的是( )。

A.省或自治区人民政府城市规划行政主管部门;国务院

B.省或自治区人民政府;国务院城市规划行政主管部门

C.省或自治区人民政府;国务院

D.省或自治区人民政府城市规划行政主管部门;国务院城市规划行政主管部门

题型:填空题

1伏安等于()微伏安。

A、1000

B、1000000

C、1000000000

更多题库