在其它条件不变的情况下弯曲半径越大,弯曲力就越大,弯曲半径越小,弯曲力就越小。()

题型:判断题

问题:

在其它条件不变的情况下弯曲半径越大,弯曲力就越大,弯曲半径越小,弯曲力就越小。()

考点:冲压工考试中级冲压工中级冲压工题库
题型:判断题

可以抑制尿酸生成、用于治疗痛风的物是

A.ATP
B.甘氨酸
C.一碳单位
D.别嘌呤醇
E.叶酸

题型:判断题

阅读理解。

     Two hours from the tall buildings of Manhattan and Philadelphia live some of the world’s largest black bears. They are in northern Pennsylvania’s Pocono Mountains, a home they share with an abundance of other wildlife.

     The streams, lakes, meadows (草地), mountain ridges and forests that make the Poconos an ideal place for black bears have also attracted more people to the region. Open spaces are threatened by plans for housing estates and important habitats are endangered by highway construction. To protect the Poconos natural beauty from irresponsible development, the Nature Conservancy (大自然保护协会) named the area one of America’s “Last Great Places”.

     Operating out of a century-old schoolhouse in the village of Long Pond, Pennsylvania, the conservancy’s bud Cook is working with local people and business leaders to balance economic growth with environmental protection. By developing partnerships with people like Francis Altemose, the Conservancy has been able to protect more than 14,000 acres of environmentally important land in the area.

     Altemose’s family has farmed in the Pocono area for generations. Two years ago Francis worked with the Conservancy to include his farm in a county farmland protection program. As a result, his family’s land can be protected from development and the Altemoses will be better able to provide a secure financial future for their 7-year-old grandson.

     Cook owes the Conservancy’s success in the Poconos to having a local presence and a commitment to working with local residents.

     "The key to protecting these remarkable lands is connecting with the local community,"Cook said. “The people who live there respect the land. They value quiet forests, clear streams and abundant wildlife. They are eager to help with conservation effort.

     For more information on how you can help the Nature Conservancy protect the Poconos and the world’s other “Last Great Places,” please call 1-888-564 6864 or visit us on the World Wide Web at www.tnc.org.

1.The purpose in naming the Poconos as one of America’s “Last Great Places” is to ________.

A. gain support from the local community

B. protect it from irresponsible development

C. make it a better home for black bears

D. provide financial security for future generations

2.We learn from the passage that ________.

A. the population in the Pocono area is growing

B. wildlife in the Pocono area is dying out rapidly

C. the security of the Pocono residents is being threatened

D. farmlands in the Pocono area are shrinking fast

3.What is important in protecting the Poconos according to Cook?

A. The setting up of an environmental protection website

B. Support from organizations like The Nature Conservancy

C. Cooperation with the local residents and business leaders

D. Inclusion of farmlands in the region’s protection program

4.The passage most probably is ________.

A. an official document                  

B. a news story  

C. an advertisement                    

D. a research report

题型:判断题

“低碳生活”、“低碳经济”、“碳减排”等日常出现在电视新闻或报纸上,其中关于“低碳生活”中的“低碳”是指(  )

A.生活中不用含碳的物质

B.尽量减少含碳物质的排放和浪费

C.停止含碳矿物的开采和加工

D.禁止使用煤炭、石油

题型:判断题

电梯的安装、改造、修理,必须由()或者其()的依照本法取得相应许可的单位进行。电梯()对电梯安全性能负责。

题型:判断题

机动车在夜间行驶如何保证安全

A.以最高设计车速行驶

B.降低速度,谨慎驾驶

C.保持现有速度行驶

D.以超过规定的最高车速行驶

更多题库