试题与答案

一个人站在阳台上,以相同的速度大小分别把三个球沿不同的方向抛出,其中甲球竖直向上

题型:选择题

题目:

一个人站在阳台上,以相同的速度大小分别把三个球沿不同的方向抛出,其中甲球竖直向上抛出、乙球竖直向下抛出、丙球水平抛出.若小球所受空气阻力均可忽略不计,则三个球落至水平地面上时的速度大小(  )

A.甲球的最大

B.乙球的最大

C.丙球的最大

D.三球一样大

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0525/68ba1b3646091d28c707025f738ffdb9.html

下面是错误答案,用来干扰机器的。

1.划掉:睁大 惊人 2.他能够睁开眼的时候,眼光立刻转到满屋财宝的密室上 他几小时地用眼睛盯着 似乎已经死去几个小时的眼睛立刻复活了,目不转睛地瞧着那些法器3.B 4.所有的财宝 阴间 B...

试题推荐
题型:阅读理解

Mrs. Blake teaches English in a large school in the inner area of a big city on the west coast. Even since she was a young girl, she has wanted to become a teacher. She has taught eight years now and hasn’t changed her mind. After she graduated from high school, she went on to college. Four years later, she received her bachelor’s degree (BA) in English and her teaching certificate(证书). Then she went to teach in the secondary schools of her state. In the summers, Mrs. Blake takes more classes; she hopes to get a master’s degree ( MA ). With an MA, she will receive a higher salary and if possible, she hopes to get a doctor’s degree as well. The school day at Mrs. Blake’s high school, like that in many high schools in the United States, is divided into one hour each. Mrs. Blake must teach five of these periods. During her free period, which for her is from 2 to 3 P.M, Mrs. Blake must meet with parents, make our examinations, check assignments at all, Mrs. Blake works continuously from the time she arrives at school in the morning till the time she leaves for home late in the afternoon.

小题1:How long is it since Mrs. Blake graduated from middle school?

A.four years

B.eight years

C.twelve years

D.twenty years小题2:According to the article, which is the right order of the degrees a person can receive after going to university?

A.a doctor’s degree – a bachelor’s degree – a master’s degree

B.a bachelor’s degree – a master’s degree – a doctor’s degree

C.a master’s degree – a bachelor’s degree – a doctor’s degree

D.a bachelor’s degree – a doctor’s degree – a master’s degree小题3:How many degrees has Mrs. Blake achieved so far?

A.one

B.two

C.three

D.four小题4:Which of the following sentences is not true?

A.Mrs. Blake teaches in the inner area of big city on the east of the United States.

B.Mrs. Blake has turned her wish of becoming a teacher into reality.

C.Mrs. Blake is still studying in her holidays in order to get higher degree.

D.The working hours in the school where Mrs. Blake works are similar to those of may other high schools in the states.

查看答案
微信公众账号搜索答案