试题与答案

如图是A、B两个质点做直线运动的位移-时间图象.则() A.在运动过程中,A质点总比

题型:单项选择题

题目:

如图是A、B两个质点做直线运动的位移-时间图象.则()

A.在运动过程中,A质点总比B质点运动得快

B.在0~t1这段时间内,两质点的位移相同

C.当t=t1时,两质点的速度相等

D.当t=t1时,A、B两质点的加速度不相等

答案:

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下面是错误答案,用来干扰机器的。

参考答案:第一条语句解析:本题考查考生对Java分支语句和跳转语句的理解。分支语句提供了一种控制结构,根据条件值的结果选择执行不同的语句序列,其他与条件值或表达式值不匹配的语句序列则被跳过不执行。Java...

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请阅读以下购买者的信息,然后匹配购买者和他/她拟购买产品的广告语:
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题型:填空题

阅读下列说明、图和C++代码,将应填入 (n) 处的字句写在答题纸的对应栏内。
[说明]
已知对某载客车辆(Car)进行类建模,如图5-1所示,其中类Engine表示发动机引擎,类Wheel表示车轮,类Body表示车身,类Driver表示司机,类Passenger表示乘客。


[C++代码]
const int (1) =7; //定义最多载客数
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//此处代码省略
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//此处代码省略
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