等腰三角形的边长为1 和2 ,那么它的周长为[ ] A、5 B、4 C、5或4

题型:选择题

问题:

等腰三角形的边长为1 和2 ,那么它的周长为[ ]

A、5

B、4

C、5或4

D、以上都不对

考点:三角形的三边关系
题型:选择题

下列说法中,不正确的是[ ]

A.只有符号不同的两个数互为相反数

B.在数轴上,互为相反数的两数到原点的距离相等

C.互为相反数的两数的和为零

D.零没有相反数

题型:选择题

Beijing today, first published in May, 2001, is the capital’s only English weekly newspaper and is published with the help of the Information Office of the Beijing Municipal Government and run by Beijing Youth Daily. Its readers include English-speaking foreigners living in Beijing and local Chinese who have great interest in English or take English as a working language.

The paper’s main content deals with metropolitan life, explaining the differences and similarities between Eastern and Western culture. Its culture and lifestyle part is regarded as a guide to metropolitan life in Beijing.

The paper has 24 pages in four main sections:

NEWS: Select stories that discuss cultural differences.

COMMUNITY: Reports on developments related to foreigners in the city and a platform(平台)by which they can communicate with a bigger audience.

CULTURE and LIFESTYLE: Highlights from international lifestyle and fashion trends in Beijing

STUDY: Cheerful and humorous pieces to help English-language students improve their skills

Beijing Today circulates 50,000 copies published every Friday. It is one of Beijing’s most authoritative(权威的) English media sources, and is sold at post newsstands and distributed in hotels, apartment complexes, etc.

Price: 2 yuan per issue

小题1:Which of the following sections would be the best choice to exchange thoughts with others?

A.NEWS

B.COMMUNITY

C.CULTURE and LIFESYLE

D.STUDY小题2:If you want to subscribe to Beijing Today for half a year, you need to pay ________.

A.52 yuan

B.24 yuan

C.104 yuan

D.48 yuan小题3:What CANNOT you read in Beijing Today?

A.News abou foreign cultural festivals

B.fashion trends in Paris.

C.Discussions with foreigners

D.Skills in improving English

题型:选择题

角膜老年环是由于类脂质沉着于角膜的()

A.基质层

B.上皮细胞层

C.前弹力层

D.内皮细胞层

E.后弹力层

题型:选择题

常见储气方式不包括的是()

A.储气瓶组

B.储气罐组(ASME容积单元)

C.地下储气井

D.储气箱

题型:选择题

申请设置和使用业余无线电台的条件所规定的“具备国家规定的操作技术能力”,其标志为()

A.取得相应操作技术能力证明,即地方业余无线电协会所颁发的业余无线电台操作证书

B.取得相应操作技术能力证明,即中国无线电协会颁发的业余无线电台操作证书

C.业余无线电爱好者公认具备国家规定的操作技术能力的人,可以免交相应的操作技术能力证明

D.境外无线电管理机构颁发或者开具的业余无线电台执照或证书也可以作为具备国家规定的操作技术能

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