POS系统将前台的销售收入与票据打印，并与后台（）系统结合，通过网络传输，是零售商业

下面四个民族的小朋友谁说的与实际不符：[ ]

A．汉族：我们人口最多

B．蒙古族：我们爱住竹阁楼

C．傣族：我们喜欢过泼水节

D．朝鲜族：我们能歌善舞

Tragedy at the Circus

In yesterday’s circus（马戏团）show, a tiger suddenly attacked its trainer and had to be shot dead. As the circus packed up and left, circus officials said the show would go on, even without tigers.

However, the officials can’t simply turn a blind eye to the ethical problems left behind. Even before this tragedy(悲剧), animal rights activists protested against keeping wild animals in unnatural conditions and forcing them to suffer for the profit(利润) of circus organizers.

It is now time for us to take effective steps to make sure that circus animals are treated properly.

Circus Safe for Animals

Our circus recently suffered a most tragic event in its history. While we are thankful for the pity from the public, we are also astonished by the opinion expressed in “Tragedy at the Circus.”

First, our performing animals are not taken from the wild. As to the ethical problems. we always believe humans and animals can—and should—live together nicely. To us, the performing animals are representatives of their species(物种), and our circus is one of the only places left willing to support this special role of performing animals in the existence of the species. Those who argue that circus life is harmful to animals show little knowledge of these facts. Life in the “wild” is unsafe, but a continuous struggle for existence. To overlook these realities is the greatest fault against the animal kingdom.

This circus has proven that animals are stronger and smarter than we could imagine. Within the circus is a joyful atmosphere for both animals and humans: people are educated, and species saved.

1.What is the main purpose of the first passage?

A.To show pity for the performing animals. 

B.To express worries about animal trainers' safety. 

C.To deal with the difficult situations of the circus

D.To call for action to protect circus animals.

2.What will the circus most probably do?

A.Take no notice of the tragedy.

B.Continue its performances.

C.Use fewer wild animals.

D.Limit its profit.

3.What does the circus think of its performing animals?

A.They are as clever as human beings.

B.They struggle continuously with human beings for existence.

C.They are helpful in saving their species.

D.They have equally natural living conditions as wild animals.

4.What is the most probable relationship between the two passages?

A.A public request and a newspaper report.

B.A newspaper article and a reply to it.

C.Two parts of a newspaper article.

D.Two newspaper reports.

以下关于项目干系人管理的叙述中，______的表述是不正确的。

A．对项目干系人的管理，由项目团队每个成员分别负责

B．项目干系人管理提高了干系人的满意度

C．项目干系人管理帮助解决与干系人相关的事宜

D．项目干系人管理加强了人员的协调行动能力

间隔层防误操作以实时状态检测、逻辑判断和输出回路闭锁等多种方式结合，充分保证对本单元一次设备的各种安全要求。

标准802.11b无线网卡与指定的无线接入点（AP）的最大有效距离是（）。

A.1.6公里

B.小于33米

C.小于150米

D.最大8公里