阅读材料后,回答下列问题。 材料一: 我国各种运输方式的运输周转量构成表 材料二

题型:材料分析题

问题:

阅读材料后,回答下列问题。

材料一:

我国各种运输方式的运输周转量构成表

材料二:

四种运输方式运费与运输距离相关曲线

(1)我国旅客周转中,最重要的运输方式是_______和公路。货物周转量最小的是_________运输方式。主要原因是____________________。

(2)读材料二,选择最佳运输方式。

①运距小于80千米时,用________运送。②运距80~550千米时,用________运送。

考点:中国的交通运输业
题型:材料分析题
解不等式
x+6
3
x-3
2
+4
,并把它的解集在数轴上表示出来.
题型:材料分析题

外汇储备主要用于

①平衡国际收支②稳定汇率③偿还对外债务④提供消费贷款

A.①②④

B.①③④

C.②③④

D.①②③

题型:材料分析题

建设工程措施项目清单的通用项目包括()。

A.临时设施

B.施工机械修理

C.工地材料保管

D.施工排水、降水

E.已完工程及设备保护

题型:材料分析题

阅读理解。

     A seventeen-year-old boy from the northeastern state of Massachusetts has won the top prize in the Intel

Science Talent Search. The competition is the oldest program in the United States that honors the science

projects of high school students. The Intel Science Talent Search is 63 years old this year.

     The winners receive a new computer and money for a college education. This year 1 652 students from

46 states entered projects for the competition. Their research involved nearly every area of science, including

chemistry, medicine, physics, mathematics, engineering, computer science and social science.

     Forty students were invited to Washington, D. C. for the final judging. A group of well-known scientists

judged them on their research abilities, critical thinking skills and creativity. The judges also questioned the

students about scientific problems before deciding on the winners.

     The top winner is Herbert Mason Hedberg of North Attleboro, Massachusetts. The second place winner

is Boris Alexeev of Athens, Georgia and the third place winner is Ryna Karnik of Aloha, Oregon. Herbert

received 100 000 dollars for his college education. He developed a faster, more effective method to tell if a

person has cancer. He explored a way to separate telomerase, an enzyme (酶) found in most cancer cells. His

findings have helped advance research into ways of stopping cancer cells from growing. Herbert said he started

the project after watching his grandmother struggle against cancer. He plans to be a doctor and continue doing,

medical research.

     Andrew Yeager of the University of Pittsburgh Medical Center was chairman of the judges for the Intel

Science Talent Search this year. He said the competition was an excellent way to discover future leaders in

science and technology. Past competition winners have gone on to receive many of the world's highest honors

for science and mathematics.

1. Herbert's way is more effective because _____.

A. it can kill cancer cells faster

B. it helps to free humans from cancer

C. it can stop cancer cells from growing

D. it can tell faster if a person is a cancer sufferer

2. We can learn from the passage that _____.

A. the final judging of the competition took place in the state of Massachusetts

B. less than three percent of the competitors entered the final part of the competition

C. critical thinking and creativity are more important than research abilities

D. the scientists judging this year's competition all work for Intel Corporation

3. What would be the best title for the passage?

A. Intel Science Talent Search

B. How to Discover Future Scientists

C. Intel Science Talent Search Winners

D. A Very Famous Competition

题型:材料分析题

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