混合岩分为四大类:();();();混合花岗岩类。

题型:填空题

问题:

混合岩分为四大类:();();();混合花岗岩类。

考点:地球科学岩石学岩石学题库
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图为细菌结构的示意图,请根据图回答下列问题.

(1)图中A是______.

(2)F是______.

(3)字母E是______.

(4)与植物细胞相比,该细菌的结构中没有______,所以不能进行光合作用.

(5)字母D是______,起着______作用.

题型:填空题
Directions: Read the following passage. Complete the diagram by using the information for the passage.
Write NO MORE THAN 3 WORDS for each answer.
The contemporary environmental movement is often said to have begun with the publication of Silent Spring by the zoologist and biologist Rachel Carson (1907–1964). This landmark work, which took Carson 4 years to complete, diligently detailed the relationship between animal death  and the use— now understood as the abuse—of man-made chemicals used as pesticides, especially DDT. One of the claims of the book that she tried to demonstrate was that DDT had the effect of softening the eggshells of birds as well as interfering with their reproduction, and that such effects would lead to their extinction if use of DDT were to continue. It would eventually create a springtime of silence when the songs of birds would not be heard. Her studies also found DDT to be a cause of human cancers.
Born in Springdale, Pennsylvania, Carson graduated from the Pennsylvania College for Women in Pittsburgh (now Chatham College), where she majored in English until her junior year, when a course in biology inspired her to switch to zoology as her field of concentration. She earned a master’s degree in this area from Johns Hopkins University and became a biologist at the Bureau of Fisheries in 1936. During this time, she wrote for various national magazines, and her first book, Under the Sea-Wind, was published. Carson had concerns as early as 1945 about pesticides being used more and more by the government. But her cautionary claims in Silent Spring were met with anger by the pesticide and chemical industries. Her authority as a scientist were challenged, and it was held that her findings were just the roars of a hysterical(歇斯底里的) woman. She was even accused of being a member of the Communist Party. Some go so far as to say that she told a lie .
But She is often celebrated as the founder of the contemporary U.S. environmental movement. Yet her work in Silent Spring, warning about the misuse of pesticides and other chemicals, has not as yet taken firm hold. Americans likely use twice as much the volume of pesticides that they did at the time she published her seminal work, and globally, their use is ever increasing. Powerful pesticides are sold over the counter, and their use is so widespread that many environmentalists are fearful that chemical runoff into streams and rivers is still popullting the animals that humans eat and the water that they drink.
In short, while the main purpose of Silent Spring was to warn the public of the dangers of the overuse of pesticides and chemicals, nonetheless the public hasn’t refused such use. Isn't it time that we firmly said no to pesticides?
Title: The    1   of Environmentalism
The   2   :  the publication of Silent Spring
The contents
One of the claims of the book  was that DDT had the effect on softening the eggshells of birds, interfering with their reproduction and     3
The author
4
Her formal major: English
Her latter major:     5  
Her first published book:   6
The present situation
Pesticides are still    7   the volumn of which is as twice as it was
Pesticides are    8   to homeowners
Chemical is still polluting the animals and    9   
conclusion
We should __10__ pesticides
 
题型:填空题

男性,67岁。慢性咳喘20余年。3天前因咽痛、鼻塞、流涕、服药后改善,但气急,咳嗽较前明显加剧,痰白黏不爽。体检:患者静息状态下气平,无紫绀,两肺散在哮鸣音。

为改善气急,首选下列哪一种支气管扩张剂()

A.麻黄素

B.二羟丙茶碱(喘定)

C.异丙托溴铵(异丙托品)

D.异丙肾上腺素

E.氯丙那林(氯喘)

题型:填空题

简述我国进出口货物原产地认定标准。

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核桃壳过滤器电磁阀、气动阀不工作检查是否存在()

A、气路压力过低;电磁阀体工作不正常;线圈断电

B、气路堵塞或漏气严重;气路压力过低;电磁阀体工作不正常;线圈断电

C、气路堵塞或漏气严重;电磁阀体工作不正常;线圈断电

D、程控器输入电源不通;程控器零线断开;PLC程控器启动钮SB3坏

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