客调能力标准化中，障碍工单催修后，装维人员需在多少时间内联系用户做催修响应（） A.

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     I am a student in China now. My name is Mary Smith. I live(居住) with my parents, two sisters and

a brother in Beijing. My parents teach English in No.6 Middle School. I study in the same school. I am

happy here, because I like my new school and the classmates. They are very friendly to me. They like to

play with me because I look different from them. I have blue eyes and long blond hair. They often say I

look like a doll (洋娃娃). Also I speak English well, so lots of students like to talk with me to improve

(提高) their English.

1. What color are Mary's eyes?

A. blonde

B. black

C. blue

2.Mary`s parents are _______.

A. doctors

B. teachers

C. farmers

3. Why do students like to talk with Mary?

A. Because Mary is a beautiful girl.

B. Because Mary's English is very good.

C. Because Mary is very interesting.

4. How many people are there in Mary's family?

A. three

B. five

C. six

5. Why does Mary like her new school?

A. Because it is very big.

B. Because it is very beautiful

C. Because the classmates are kind to her.

由项目的组织结构图、项目流程、项目管理流程、信息流程和确定的运行规则构成的沟通形式称为（）。

A.非正式沟通

B.垂直沟通

C.正式沟通

D.横向沟通

如图甲，一容积为0.5m3、底面积为0.5m2的容器装满水后密封，容器内水的质量是______kg，水对容器底面的压强为_______Pa.；如图乙，若在容器侧壁处开一小孔P，发现水不会从小孔流出，这是由于______________的作用。(g＝10N／kg)

现代证券组合理论表明，可以用效用无差异曲线来刻画投资者对风险收益的偏好特征。比如，能够刻画“只关心风险而无视收益的投资者”的无差异曲线是（）。

A．A

B．B

C．C

D．D

某公司要组建一个小型Windows局域网，包括1台服务器和10台PC机，网络结构如图6所示。该公司在服务器上建立自己的商业网站，网站域名定为“www.economical.com”。请根据网络结构图回答以下有关问题。

为了将公司内所有的计算机连接起来。图1中的①处可采用哪两种类型的设备？