来源于马尾藻科植物的药材是() A.长松萝 B.松萝 C.海藻 D.茯苓

题型:单项选择题 B1型题

问题:

来源于马尾藻科植物的药材是()

A.长松萝

B.松萝

C.海藻

D.茯苓

E.冬虫夏草

考点:主管中药师藻、菌、地衣类中药藻、菌、地衣类中药题库
题型:单项选择题 B1型题

关于光现象,以下说法正确的是 [ ]

A.上海世博会中国馆外观呈红色是因为中国馆吸收了红色光

B.小孔成像是由于光沿直线传播形成的

C.光发生漫反射时,不遵循光的反射定律

D.你在岸边看到水中的鱼,其实就是鱼的实际位置

题型:单项选择题 B1型题

《会计法》规定,对私设会计账簿的行为,由县级以上人民政府财政部门责令限期改正,可以对单位并处()的罚款。

A.2000元以上50000元以下

B.3000元以上50000元以下

C.3000元以上20000元以下

D.5000元以上50000元以下

题型:单项选择题 B1型题

                                 

C

Celebrations spread across China when Shanghai, the Oriental Pearl, was given the right to host the 2010 World Expo on December 3. Shanghai won the honor after beating rivals from Russia, Mexico, Poland and South Korea.

“I’m very proud of being Chinese,” said Wang Kaibo, a Senior 2 student of the Middle School Affiliated (附属的) to Beijing Medical University. “The winning of the expo is a victory, not only for Shanghai residents, but for the people of the whole Chinese nation.”

Bidding for the expo shows that China is more confident of playing a more important role on the international stage. It’s competing for large events and the next one could be the World Cup, Wang said.

The World Expo 2010 and the 2008 Beijing Olympics will become the twin shining stars of China’s development over the next 10 years, said experts. The World Expo is known as “Olympics of the economic, cultural, scientific and technological fields.” It is usually held every five years and lasts for six months. The Olympics, World Cup and World Expo are considered three top international events in the world.

China is the first developing country to win the expo bid in the event’s about 159-year history. Not only will it attract more foreign investment to China, but experts say that the half-year-long exhibition will bring at least 70 million visitors to Shanghai.

The expo was first held in London in 1851. It has a history of global influence. The Eiffel Tower, built during the Paris World Expo in 1889, became the symbol of the French capital.Many historic inventions, such as the telephone and airplane, all made their first appearance at a World Expo.

48. What does the word in bald “rivals” probably mean in the second paragraph?

A. competitors.        B. enemies.         C. players.          D. supporters.

49. The winning of bidding for the World Expo 2010 and the 2008 Olympic Games implies ______.

A. China is beginning to play a more important part on the international stage.

B. China has played the most important role in the international affairs.

C. China has become a developed country for many years.

D. China is the first Asian country to win the expo bid in history.

50. As we know, in general, the Word Expo is usually held every ______ years, while the Olympics is usually held every ______ years.

A. 4;5          B. 5;4         C. 4;4               D. 5;5

51. By bidding for the expo and the Olympics, we are sure that ______.

A. China will beat rivals from Russia, Mexico, Poland and South Korea

B. China will become a super country in the United Nations

C. China will build a famous tower like Eiffel Tower as the symbol of the capital

D. China will develop more quickly than before and will benefit a lot from them

题型:单项选择题 B1型题

阅读下面短文,回答下 * * 道题。
转基因作物同普通植物的区别只是多了能使它产生额外特性的基因。早在1983年,生物学家就已经知道怎样通过生物工程技术将外来基因移植到某种植物的脱氧核糖核酸中去,以便使它产生靠杂交方式根本无法获得的某种新的特性:抗除莠剂的特性、抗植物病毒的特性、抗某种害虫的特性等。用以移植的基因可来自任何生命体:细菌、病毒、昆虫等。
转基因作物目前在世界上已种植有1000万公顷左右,种植最多的是棉花、玉米和西红柿等。在实验室试种的还有莴笋、西瓜、稻谷等品种。实验的目的除了增产之外,还在于提高这种品种的抗病毒能力。
但同时也有专家担心转基因作物可能对环境有危险。比如,在美国种植的那种能抗虫害的玉米和棉花,可能加快出现一些更难对付的害虫。这类作物的所有分子都分泌出一些微量的“杀虫药”,一种像任何一种农药一样能选择杀死某些害虫的“雾剂”。尤其是那些能抗除莠剂的作物,它们一旦同野生状态下的“表姐妹”杂交之后,那些“表姐妹”也就会因此而成为除莠剂无法除掉的变种了。
对于这种技术,尽管还有些问题需要继续研究,但这确是人类9000年作物栽培史上一场空前的革命。

对文中画线处的意思理解正确的一项是______。

A.新害虫的出现与能抗害虫作物分泌的“雾剂”污染环境有关
B.美国的那种转基因的玉米和棉花品种是无法对付害虫的
C.能抗虫害的玉米和棉花可能促使更不容易杀死的害虫出现
D.那种能抗虫害的作物,在抗虫害的同时,又保护了一些害虫

题型:单项选择题 B1型题

嫩小原料的初步熟处理着色方法是用()下锅焯煮

A.小火温水

B.旺火冷水

C.旺火沸水

D.小火清水

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