Bell麻痹发病时有下列哪种情况时预后较好() A.老年患者 B.有糖尿病者 C.有

题型:单项选择题

问题:

Bell麻痹发病时有下列哪种情况时预后较好()

A.老年患者

B.有糖尿病者

C.有高血压、动脉硬化者

D.有受凉史而起病者

E.有心绞痛或既往有心肌梗死病史者

考点:神经内科(医学高级)周围神经系统疾病周围神经系统疾病题库
题型:单项选择题

若程序Pa和Pb单独执行时分别用Ta和Tb,Ta=1小时,Tb=1.5小时,其中处理器工作时间分别ta=18分钟,tb=27分钟,如果采用多道程序设计方法,让Pa、Pb并行工作,假定处理器利用率达到50%,另加15分钟系统开销,请问系统效率能提高多少

题型:单项选择题

某商场以低于进货的价格销售一批即将到期的商品。该行为违反了《价格法》的规定,构成掠夺性定价。( )

题型:单项选择题

阅读理解

    Jackie Heinricher's love affair with bamboo started in her backyard. "As a child, I remember playing

among the golden bamboo my dad had planted, and when there was a slight wind, the bamboos sounded

really musical."

     A fisheries biologist, Heinricher, 47, planned to work in the salmon industry in Seattle, where she lived with her husband, Guy Thornburgh, but she found it too competitive. Then her garden gave her the idea

for a business: She'd planted 20 bamboo forests on their sevenacre farm.

     Heinricher started BooShoot Gardens in 1998. She realized early on what is just now beginning to be

known to the rest of the world. It can be used to make fishing poles, skateboards, buildings, furniture,

floors, and even clothing. An added bonus: Bamboo absorbs four times as much carbon dioxide as a

group of hardwood trees and releases 35 percent more oxygen.

     First she had to find a way to massproduce the plants-a tough task, since bamboo flowers create seed only once every 50 to 100 years. And dividing a bamboo plant frequently kills it.

     Heinricher appealed to Randy Burr, a tissue culture expert, to help her."People kept telling us we'd

never figure it out," says Heinricher."Others had worked on it for 27 years! I believed in what we were

doing, though, so I just kept going."

     She was right to feel a sense of urgency. Bamboo forests are being rapidly used up, and a United

Nations report showed that even though bamboo is highly renewable,_as many as half of the world's

species are threatened with dying out.Heinricher knew that bamboo could make a significant impact on

carbon emissions(排放)and world economies, but only if huge numbers could be produced. And that's

just what she and Burr figured out after nine years of experiments-a way to grow millions of plants. By

placing cuttings in test tubes with salts, vitamins, plant hormones, and seaweed gel, they got the plants to

grow and then raised them in soil in greenhouses.

     Not long after it, Burr's lab hit financial difficulties. Heinricher had no experience running a tissue

culture operation, but she wasn't prepared to quit. So she bought the lab.

     Today Heinricher heads up a profitable multimilliondollar company, working on species from all over

the world and selling them to wholesalers(批发商). "If you want to farm bamboo, it's hard to do without

the young plants, and that's what we have," she says proudly.

1. What was the main problem with planting bamboo widely?

A. They didn't have enough young bamboo.

B. They were short of money and experience.

C. They didn't have a big enough farm to do it.

D. They were not understood by other people.

2. What does Heinricher think of bamboo?

A. Fragile and affordable.

B. Productive and flexible.

C. Useful and earthfriendly.

D. Strong and profitable.

3. The underlined word "renewable" in Paragraph 6 probably means "________".

A. able to be replaced naturally

B. able to be raised difficultly

C. able to be shaped easily

D. able to be recycled conveniently

4. What do you learn from the passage?

A. Heinricher's love for bamboo led to her experiments in the lab.

B. Heinricher's determination helped her to succeed in her work.

C. Heinricher struggled to prevent bamboo from disappearing.

D. Heinricher finally succeeded in realizing her childhood dream.

题型:单项选择题

以下哪条命令可以最准确的显示当前用户的名称()。

A.w

B.who

C.whoami

D.以上都不是

题型:单项选择题

挣值这一概念的主要缺陷在于______。

A.和当前WBS联系起来时不能确定客户的项目范围
B.一旦计算出已完成的工作预算成本,要想对项目成本采取纠错行动已为时过晚
C.提供已完工百分比准确估算的能力
D.没有缺陷

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