下列()是局域网的特征。 A.传输速率低 B.信息误码率高 C.分布在一个宽广的地理

题型:单项选择题

问题:

下列()是局域网的特征。

A.传输速率低

B.信息误码率高

C.分布在一个宽广的地理范围之内

D.提供给用户一个带宽高的访问环境

考点:高级信息系统项目管理师计算机网络知识计算机网络知识题库
题型:单项选择题

阅读理解。

     Bob and Frank are good friends. They often go to movies together (一起) on weekends. Bob's favorite

actor is Cheng Long. He has an action movie, Who Am I. It's very exciting. Frank likes the actor Rick Smith.

He really likes his movie, Black September. Frank thinks it's a very successful thriller. Bob and Frank are

American, but they both like Beijing Opera, they think they can learn about Chinese history from these

movies.

1. Bob and Frank often _______ together on weekends.

A. go to school

B. go to a movie

C. are good friends

D. go to see an action movie

2. Bob's favorite actor is _______.

A. Frank

B. Cheng Long

C. Beijing

D. American

3. The film (影片) Black September is _______.

A. an action movie

B. a comedy

C. Beijing Opera

D. a thriller

4. Bob and Frank come from _______.

A. America

B. China

C. Japan

D. England

5. Which of following is false ( 下列哪种说法是错误的)?

A. Bob and Frank are good friends.

B. Who Am I is an action movie.

C. We can learn about Chinese history from action movies.

D. Bob and Frank like Beijing Opera.

题型:单项选择题

( )是填写完整的指界委托书的接收入。

A.指界委托人

B.地籍调查人员

C.县(市、区)人民政府

D.县(市、区)国土资源局

题型:单项选择题

与原发性肝癌发生相关的致癌因素,错误的是()

A.黄曲霉污染食物

B.肝硬化

C.华支睾吸虫胆道感染

D.病毒性肝炎

E.饮用水污染

题型:单项选择题

如图,粗细均匀的U形管的底部中间有一阀门,开始阀门关闭,两臂中的水面高度差为h。现将阀门打开,最终两臂水面相平。则这过程中

A.大气压做正功,重力做负功,水的内能不变;

B.大气压不做功,重力做正功,水的内能增大;

C.大气压不做功,重力做负功,水的内能增大;

D.大气压做负功,重力做正功,水的内能不变。

题型:单项选择题

为明确诊断,抽血培养的最佳时间是()

A.先用抗生素3天,体温不退再抽血

B.停用抗生素2天后,抽取3次血培养,每次间隔1小时

C.在抗生素使用前,24小时内于畏寒发热时抽3次血培养

D.抽血时间与抗生素使用无关

E.停用抗生素1~2周后再抽血

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