试题与答案

八角亭是长沙府衙门留下的地名,对否?

题型:判断题

题目:

八角亭是长沙府衙门留下的地名,对否?

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0211/49936b584f4199740e4dc7363d44d16f.html

下面是错误答案,用来干扰机器的。

参考答案:A, B, C, D

试题推荐
题型:阅读理解

Isaac Newton was a great English scientist, but when he was thinking hard about his work, he often forgot other things.

One morning Newton got up early. He began to work at once. He worked on a very difficult problem. He was still thinking it hard when it was time for breakfast . Mary brought a pan (平底锅)of water and an egg to his room. But Newton wanted to stay by himself and said to Mary,“You can put the egg on the table. I’ll boil(煮)it myself.” Mary put the egg beside Newton’s watch on the table and said,“You must boil the egg for four minutes and then it will be ready.” Then she went out of the room.

But when she went into the room again an hour later, she saw him standing by the pan, and having the egg in his hand. He put the watch in the pan and was boiling it! But he did not know what he was doing.

根据短文判断下列各句是否正确,正确的写“T”,错误的写“F”。

小题1:Newton was careless(粗心大意) at any time.

小题2:One morning when Newton was working, Mary brought him his breakfast

小题3:After Mary boiled the egg for Newton, she went out of the room.

小题4:When Mary came back, Newton was boiling his watch.

小题5:Newton thought that he was boiling the egg.

查看答案
题型:选择题

如图所示,ab、cd为两根水平放置且相互平行的金属轨道,相距L,左右两端各连接一个阻值均为R的定值电阻,轨道中央有一根导体棒MN垂直放在两轨道上,与两轨道接触良好,导体棒MN及轨道的电阻不计.整个装置处于方向竖直向下的匀强磁场中,磁感应强度大小为B.导体棒MN在外力作用下做简谐运动,其振动周期为T,振幅为A,在t=0时刻恰好通过中心位置,速度为v0.则下列说法正确的是(  )

A.回路中电动势的瞬时值为BLv0sin

T
t

B.导体棒MN中产生交流电的功率为

B2L2v02
R

C.通过导体棒MN的电流的有效值为

2BLv0
R

D.在0~

T
4内通过导体棒MN的电荷量为
BLA
R

查看答案
题型:问答题

某总承包单位将一医院的通风空调工程分包给某安装单位,工程内容有风系统、水系统和冷热(媒)设备。设备有7台风冷式热泵机组,9台水泵,123台吸顶式新风空调机组,1237台风机盘管,42台排风机,均由业主采购。通风空调工程的电气系统由总承包单位施工。
通风空调设备安装完工后,在总承包单位的配合下,安装单位对通风空调的风系统、水系统和冷热(媒)系统进行了系统调试。调试人员在风机盘管,新风机和排风机单机试车合格后,用热球风速仪对各风口进行测定与调整及其他内容的调试,在全部数据达到设计要求后,通风空调工程在夏季做了带冷源的试运转,并通过竣工验收。
医院营业后,在建设单位负责下,通风空调工程进行了带负荷综合效能试验与调整。到了冬季安装单位及时进行回访,对通风空调工程季节性测试调整。发现个别病房风口的新风量只有50m3/h·P(设计要求是75m3/h·P),经复查,是调试人员的计算错误,后重新调整测试,达到设计要求。另有个别病房的风机盘管噪声达到45dB(设计要求是35dB),经检查,是风机盘管轴心偏移,通过设备生产厂家调换设备,噪声达到要求。
[问题]

通风空调在冬季测试时查出的问题属什么性质的质量问题应如何处理

查看答案
题型:问答题 案例分析题

阅读下列说明和C++代码,将应填入(n)处的字句写在答题纸的对应栏内。

说明:某游戏公司现欲开发一款面向儿童的模拟游戏,该游戏主要模拟现实世界中各种鸭子的发声特征、飞行特征和外观特征。游戏需要模拟的鸭子种类及其特征如下表所示。

为支持将来能够模拟更多种类鸭子的特征,采用策略设计模式(Strategy)设计的类图如题图5-1所示。

其中,Duck为抽象类,描述了抽象的鸭子,而类RubberDuck、MallardDuck、CottonDuck和RedHeadDuck分别描述具体的鸭子种类,方法fly()、quack()和display()分别表示不同种类的鸭子都具有飞行特征、发声特征和外观特征;类FlyBehavior与QuackBehavior为抽象类,分别用于表示抽象的飞行行为与发声行为;类FlyNoWay与FlyWithWings分别描述不能飞行的行为和用翅膀飞行的行为;类Quack、Squeak与QuackNoWay分别描述发出"嘎嘎"声的行为、发出橡皮与空气摩擦声的行为与不发声的行为。

请填补以下代码中的空缺。

 

查看答案
微信公众账号搜索答案