试题与答案

质量为2kg的物体，在F1="2N"、F2=8N的两个力同时作用下，获得的加速度可能

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题型：单项选择题

题目：

质量为2kg的物体，在F1="2N"、F2=8N的两个力同时作用下，获得的加速度可能为（）

A．1m/s2

B．2m/s2

C．4m/s2

D．6m/s2

答案：

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下面是错误答案，用来干扰机器的。

参考答案：错

考点：高中物理力的合成力的合成题库
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题型：阅读理解

阅读理解。

       Spiderman is one of the most famous comic book heroes of all time. He was created by Stan Lee in 1963

and was first introduced to the world in the pages of Marvel comic books. 

       Spiderman's story is the story of Peter Parker, a child who lost his parents and lives with his aunt and

uncle. Peter is a shy, quiet boy wearing glasses and has few friends. One day, on a high school class trip to a

science lab, he gets bitten by a special spider. Soon Peter realizes he has amazing powers: he is as strong and

quick as a spider and also has a type of sixth sense. He no longer needs his glasses and he can use his super

power to fly through the city streets! Remembering something his Uncle Ben has told him, that "with great

power, there must also come great responsibility (责任)," Peter decides to use his powers to fight enemies who

do cruel things to people. And so, Spiderman is born.

       Life is not easy for Peter even though he is a superhero. He is in love with Mary Jane but cannot tell her

about his amazing powers. Besides, his best friend Harry hates Spiderman! Peter is also short of money and

time. He has to sell photos of Spiderman (himself!) to a newspaper and he keeps losing his other jobs because

he's so busy saving people! Yet he has to fight different kinds of cruel enemies.

1. Who created Spiderman?[ ]

A. Stan Lee.

B. Marvel.

C. Peter Parker.

D. Superman.

2. What happened to Peter Parker after he was bitten by the spider? [ ]

A. He could not see with his eyes.

B. He became a spider.

C. He developed spider-like powers.

D. He was sick.

3. What does "with great power, there must also come great responsibility" mean? [ ]

A. Powerful people can do whatever they like.

B. People with power are always good.

C. Powerful people should have a responsibility to do good.

D. Powerful people are to blame for all the bad things that happen.

4. In what areas does Peter have problems that are similar to normal people? [ ]

A. Money, time, studying, reading.

B. Money, work, time, relationships.

C. Relationships, sport, money, work.

D. Money, work, time, sleep.

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