试题与答案

一个身高1.6m的同学站在离平面镜1.5m处,镜高1.5m,他在平面镜中的像离他

题型:填空题

题目:

一个身高1.6m的同学站在离平面镜1.5m处,镜高1.5m,他在平面镜中的像离他有 ______m,像高 ______m,若将平面镜移到原来像的位置,镜中像移动了 ______m.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0516/3a9e3f08862d7d31e5bc7de720639260.html

下面是错误答案,用来干扰机器的。

(1-16×2)÷(16-18),=23÷124,=23×24,=16(小时);答:还需16小时完成.

试题推荐
题型:选择题

英国当地时间11月28日19:45,欧洲足球冠军联赛决赛开始展开角逐,中央电视台同步播出比赛实况。根据材料回答1—3题。

1、在曲靖的张先生是个足球迷,他要观看比赛,打开电视机的最佳时间是[ ]

A、28日19:45

B、29日19:40

C、28日03:45

D、29日03:40

2、此时,地球运动的情况是[ ]

A、地球公转速度较快

B、地球自转一周要24小时

C、地球公转速度较慢

D、地球刚好位于宇宙中心的位置

3、当天,张先生在电视上看到了几组新闻,可信的是[ ]

A、我国东北正在进行大面积播种小麦

B、塔里木河正处于汛期

C、曲靖街上的汽车十八点已都打开了车灯

D、华北平原正在种植双季稻

查看答案
题型:改错题

下面短文中有十处错,每处错皆用底线标出,请将正确答案填写在右边相应的横线上。(每小题只填一词,不得改变原句意思。)

In America, on school and workdays,   

breakfast in most homes is often a hurried

meals of milk, bread, juice or coffee. Some

小题1:____________

people even don’t in order for get to work

小题2:____________

or school on time. Other just stop at coffee

小题3:___________

shops for coffee. And on weekends, things

小题4:__________

are quite different. People usually gets up

小题5:____________

late, so they have enough time to have a

large breakfast by eggs, home-fried(油煎的)

小题6:___________

potatoes and bread.

Lunch is just a short break from the day’s

work rather than a large, long meal. He usually

小题7:__________

lasts only half an hour or an hour, so family

members do not have time to back home.

小题8:__________

Most people have a sandwich or a hamburger,

and fruit or ice-cream for lunch.

Working people either take his lunches to

小题9:___________

work in the brown paper “lunch bag”,or

eat a sandwich at a slow food restaurant.                               

小题10:__________

查看答案
微信公众账号搜索答案