一辆汽车从甲地开往乙地,已经行了全程的40%,再行20千米,就正好行了全程的一半

题型:解答题

问题:

一辆汽车从甲地开往乙地,已经行了全程的40%,再行20千米,就正好行了全程的一半,甲、乙两地相距多少千米?

考点:百分数的计算,百分数的应用题
题型:解答题

清朝统治者实行禁海政策的主要原因是

①认为天朝物产丰盈,无需对外交往 ②防止外夷入侵 ③防止沿海人民聚集力量抗清 ④害怕沿海人民与外国联合危及统治 ⑤害怕外国资本主义经济冲击自然经济

A.①②③④

B.②③④⑤

C.①②④⑤

D.①②③④⑤

题型:解答题

根据法律规定,上市公司发生的下列情形中,应终止其股票上市的有( )。

A.经营状况严重恶化,最近3年连续亏损,在限期内未能消除

B.具有重大违法行为,经查实后果严重

C.被行政主管部门依法责令关闭

D.在交易中有严重的违约行为

题型:解答题

丹参的水溶性成分是()

A.大黄素

B.白藜芦醇苷

C.丹参酮ⅡA

D.丹酚酸B

E.β,β’-二甲基丙烯酰阿卡宁

题型:解答题

阅读理解。

     Full of beauty, happiness and a healthy love of life, the Bulgarian (保加利亚人的) festivals and customs

date back to old time when man tried to live in peace with nature. The merriest and richest festivals are

Christmas and the New Year, when the so-called. "sourvakari" makes the round of house with wishes for

health and wealth. Other main festivals include "ladouvane"-a holiday for young girls on New Year's Day or

Midsummer Day (24th June), Shrovetide and Mummers' Games which mark the start of spring, and

"lazrouvane"-a traditional festival for love and family, health and richness. And among them, the widely popular

and typical Bulgarian customs and festivals are "martenitsas" and rose-picking.

     Every year on March lst, the Bulgarians give each other "mar-tenitsas"-a small doll made of white and red

strings, a symbol of the beginning of spring, health and happiness.

     In late May and early June every year, the rose-picking season starts in the Valley of Roses which is

between the Balkan Range and the Sredna Gora Mountains. Rose-picking starts at dawn, before sunrise and

before the pleasant smell of the rose has disappeared. The Bulgarian rose produces 70 percent of the world's

rose oil which is used by the very well-known perfume (香水) company as a basic element of its products.

This is the time of the Festival of Roses, celebrated with carnivals, happy activities, folk songs and dances in

Karlovo and Kazanluk on the first Sunday in June.

1. The passage is mainly about _____. [ ]

A. Christmas and the New Year in Bulgaria

B. the origin of Bulgarian festivals and customs

C. rose-picking and perfume industry in Bulgaria

D. typical customs arid festivals of Bulgaria .

2. Which of the following can be the best title for the passage? [ ]

A. "Martenitsas"-the Beginning of Spring

B. Beauty, Happiness and Love

C. Bulgarian Festivals and Customs

D. Rose-picking and "Martenitsas"

3. The author of this passage intends to _____. [ ]

A. let us know some knowledge of Bulgarian culture

B. tell us the differences between customs and festivals

C. explain the connection between customs and industry

D. find the origin of the Bulgarian customs

4. The second and the third paragraphs of the passage _____. [ ]

A. tell us how popular rose-picking is

B. link two festivals with health and richness

C. show us two merriest and richest festivals

D. talk about two typical Bulgarian festivals

5. This passage is most likely to appear in a _____. [ ]

A. magazine of travel

B. book on world culture

C. history book

D. daily newspaper

题型:解答题

测量齿轮的公法线长度时,跨齿数应根据齿数来选择,一般跨齿数不宜少于齿数的()。

A.1/4

B.1/9

C.1/2

D.l/6

更多题库