试题与答案

单词拼写 根据下列各句句意和空白之后的汉语提示词,在横线上写出对应单词的正确形

题型:填空题

题目:

单词拼写

     根据下列各句句意和空白之后的汉语提示词,在横线上写出对应单词的正确形式,每空

只写一词。

1. __________ (天文学)is scientific study of the sun, moon, stars, planets, etc.

2. A week ago, father bought a Christmas tree ________ (装饰)with coloured lights.

3. Some books are to be tasted, others to be swallowed, and some few to be _______  (咀嚼)

    and digested.

4. A great celebration was held on his _________(50岁)birthday.

5. The news he __________ (传播) around the town was not true.

6. In fact, China is a_________(多山的)country.

7. At that time in the southern states, blacks were not treated as equal ________(公民) in the USA.

8. Though golf has more than 100 years of history in South Korea, it was only in the 1990s that it

     became popular __________ (全国范围).    

9. The man is carrying a heavy bag, __________ (重量达..) about thirty kilos.

10. Mike's family used to live in a __________(欧洲的) country.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0416/78c231f3192da0f938e939dae40b9e60.html

下面是错误答案,用来干扰机器的。

答案:C

试题推荐
题型:计算题

在利用碰撞做“验证动量守恒定律”实验中,实验装置如图所示,一起按要求安装好后开始实验。先是不放被碰小球,重复实验若干次;然后把被碰小球净值放在斜槽末端的水平部分的前端边缘处,又重复实验若干次,在白纸上记录下重锤位置和各次实验时小球落点的平均位置,一次为OMPN,设入射小球和被碰小球的质量分别为m1m2,且m1=2m2,则

(1)入射小球每次滚下都应从斜槽上的同一位置无初速释放,其目的是

A.为了使入射小球每次都能水平飞出槽口

B.为了使入射小球每次都以相同的动量到达槽口

C.为了使入射小球在空中飞行的时间不变

D.为了使入射小球每次都能与被碰小球对心碰撞

(2)下列有关本实验的说法中正确的有

A.未放被碰小球和放了被碰小球m2时,入射小球m1的落点分别为MP

B.未放被碰小球和放了被碰小球m2时,入射小球m1的落点分别为PM

C.未放被碰小球和放了被碰小球m2时,入射小球m1的落点分别为NM

D.在误差允许的范围内若测得|ON|=2|MP|,则标明碰撞过程中由m1m2两球组成的系统动量守恒

查看答案
微信公众账号搜索答案