手机的呼叫振铃信号是在()上传输的。 A.广播信道 B.同步信道 C.业务信道 D.

题型:单项选择题

问题:

手机的呼叫振铃信号是在()上传输的。

A.广播信道

B.同步信道

C.业务信道

D.控制信道

考点:通信电子计算机技能考试用户通信终端维修员用户通信终端维修员题库
题型:单项选择题

何谓刀位点?

题型:单项选择题

阅读理解。

     For most students in universities, 20,000 yuan is a big sum. But Xiao Wang paid the money soon after

she learned that she could change to the popular Economics Department.

     But by paying 20,000 yuan with the help of her parents, Xiao Wang can study the economics major she

prefers. "It is difficult for graduates (毕业生) in chemistry to find a good job in recent years," she said. Xiao

Wang is only one of the many freshmen that pay to change to popular majors. Many universities throughout

China offer similar services. The charge for changing majors are from 5,000 yuan t0 80,000 yuan, according

to a recent report on the Yangzi Evening News. The fee (费用) is decided by university authorities based on

the popularity of each major, the report said. The most popular majors include computer science, law, finance,

information engineering and foreign languages.

     A saying popular among students may explain the phenomenon (现象). Studying a good major is much

better than studying in a famous university.

     Some educators warn students against rushing blindly to today's popular majors. They may not be popular

years later, the China Youth Daily said. But it seems that many students are career-oriented (以职业为宗旨的),

instead of being interest-based.

     Freshmen are allowed to change to other departments, according to rules of the Ministry of Education. But

there is no official rules on the charges. In spite of the high charges, demands to change majors are still

increasing. The paper said about 100 students in the English language department of a school in Harbin changed

from other departments. The department planned to admit only 50 freshmen this year.

     These charges have become a big income for some universities, the paper said. It is expected a normal

school in Harbin will get an income of 30 million yuan this year.

1. Xiao Wang would rather pay 20,000 yuan to choose the Economics Department because _____.

A. her parents have persuaded her to do so

B. she prefers to study the major

C. it has a promising future

D. transferring to another major is very popular in university

2. The following are the most popular majors in China today except _____.

A. law

B. computer

C. English

D. teaching

3. The fees that freshmen hand in to change to a new major are decided by _____.

A. headmasters

B. the Ministry of Education

C. university authorities

D. the China Youth Daily

4. The writer wrote the passage to _____.

A. encourage students to change to popular majors

B. explain that is not right for universities to charge too much money

C. tell us a new phenomenon that took place in universities

D. warn the students to be careful if they want to change majors

题型:单项选择题

下列方剂的药物组成中不含当归生地黄的是 ( )

A.清胃散

B.当归六黄汤

C.一贯煎

D.朱砂安神丸

E.酸枣仁汤

题型:单项选择题

患者,男性,21岁。腹泻2天,黏液便,每日十余次,伴腹痛及里急后重感。查体:体温38.5℃,血压110/75mmHg。粪便常规:外观为黄色黏液便,镜检RBC2~4/HP,WBC16~22/HP。其诊断是()

A.细菌性痢疾

B.细菌性食物中毒

C.霍乱

D.伤寒

E.阿米巴痢疾

题型:单项选择题

下面是某企业的一组经营数据资料:
(1)公司经销A种小型电动机,单价为650元/台,单位产品的变动成本为480元/台,固定成本分摊为2.04万元。
(2)企业报告年度生产B铸件消耗发热量6300千卡/千克的焦炭375吨,计划年度铸件生产量增加20%。
(3)企业可供选择经营的产品有甲、乙、丙、丁四类,由于对未来两年的市场需求无法做到比较精确的预测,只能大致估计为:需求量较高、一般、较低三种情况。这三种情况的损益值如下表所示:

自然状态 经营品种
需求量较高 530 300 140 200
需求量一般 20 150 140 100
需求量较低 -70 60 140 50
试据此计算分析,并回答如下问题:

用乐观原则决策,企业应选( )类产品。

A.甲

B.乙

C.丙

D.丁

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