()是可以组织远程客户机登录到你的内部网络。A、代理服务器 B、防病毒软件 C、操作系统

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问题:

()是可以组织远程客户机登录到你的内部网络。

A、代理服务器

B、防病毒软件

C、操作系统控制

D、防火墙

考点:经济学电子商务概论电子商务概论题库
题型:单项选择题

.

Section B.

Directions: Complete the following passage by using the words in the box.  Each word can be used only once.  Note that there is one word more than you need.

A. protection     B. ties          C. dependence   D. relaxed    E. influenced

F. readily        G. abandoning   H. harmed      I. tightly      J. emotional

Many people, when they speak of home, tend to associate it with a certain physical surroundings and a certain ___41___ attitude.  This attitude toward home has come down to us from the past.

In the old days life was tough.  Enemies could attack you and you had little ___42___ against them.  People did not live in well-built houses where doors were locked.  They didn’t have an organized police force that could rush to their rescue instantly.  This unsafe situation ___43___ the way people felt about home.  Small family groups held to each other ___44___ for protection against animals and other men.  We can see this even in today’s minority groups who, because of a feeling of insecurity, still preserve close family ___45___.

Today, thanks to modern transportation and technologies, thousands of people willingly and ___46___ leave the place where they were born.  These people, especially the young, are ___47___ their parents’ homes to live their own life.  They have no ___48___ on their parents’ homes.  Home is just where they can shut the door and feel ___49___by themselves.  And the meaning of the word “home” has been somewhat changed by this activity.  To these people, home means a place where they can have privacy.

题型:单项选择题

在回归和相关分析中,下列哪一种情况计算的回归系数b=0()

A.x增大,y增大

B.x增大,y减少

C.x减少,y增大

D.x减少,y减少

E.x增大,y不变

题型:单项选择题

为保证消化液的浓度,饭后不要给幼儿饮水。

题型:单项选择题

下列()应采用急则治标的方法。

A.妇女经崩

B.脾虚腹泻

C.创伤出血

D.风寒咳嗽

题型:单项选择题

阑尾炎可以引起输卵管炎,主要通过何种途径传染?()

A.上行传播

B.经血传播

C.直接蔓延

D.经淋巴蔓延

E.以上都不是

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