对长度为N的线性表进行顺序查找,在最坏情况下所需要的比较次数为______。A.N+

题型:单项选择题

问题:

对长度为N的线性表进行顺序查找,在最坏情况下所需要的比较次数为______。

A.N+1

B.N

C.(N+1)/2

D.N/2

考点:计算机等级考试VISUALBASIC二级VISUALBASIC笔试329
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心脏病患者实施手术的死亡率是无心脏病者的()。

A.2~3倍

B.4~5倍

C.6~8倍

D.大于10倍

E.相差不多

题型:单项选择题

人身保险合同中,保险利��的确定采取的方式是()。

A.限制家庭成员关系范围并结合被保险人同意的方式

B.限制血缘关系并结合保险人同意的方式

C.限制婚姻关系并结合保险人同意的方式

D.限制婚姻关系并结合受益人同意的方式

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阅读理解。

     A recent Living Social survey showed that Americans may live up to their poor reputation while

travelling abroad. But what's more surprising is that many of those surveyed self-identified themselves

as 'ugly' Americans and the world's worst travelers.

     Those in the U.S. ranked themselves as the worst travellers by a shocking 20 per cent, followed by

15 per cent saying the Chinese were the most substandard tourists.

     Americans topped the list as being the worst-behaved travelers in a survey of 5,600 respondents,

4,000 of whom were Americans. Other respondents were in Australia, Canada, Ireland and the United

Kingdom. But even American respondents considered their compatriots (同胞) as the worst travelers

from a list of 16 nationalities.

     Canadians and Australians also put Americans in the No. 1 spot. Irish respondents pointed to U.K.

residents and U.K. respondents gave Germans the nod. On the other hand, 37% of Americans opted

for "none of the above" in answer to the worst-tourists question, displaying more tolerance and

open-mindedness than the other nationalities.

     Other survey questions had respondents admitting pilfering from hotels. Four in ten U.S.

survey-takers said they'd stolen something - mostly towels (28%) and bathrobes (8%). Other popular

pinched items included pillows, remote controls, Bibles and sheets.

     Not surprising is that Americans have less time off from work than other nationalities. Americans

reported getting 16 days off, compared with 28 days for the Irish, 27 days for Australians, 23 days for

U.K. workers; and 21 days for Canadians.

     In the travel mishaps department, the most common travel disaster reported by Americans was lost

luggage on an airline (21%); bad weather (21%); and getting very lost (16%).

     As for places Americans most want to see, Disney World and Las Vegas made the top 10, but they

weren't at the top of the heap. And New York didn't make the cut.

1. What percentage of American respondents is in the survey?

A.20 %

B.15%

C.71%

D.37%

2. The underlined word "pilfering" in Para. 5 most probably means ________. 

A. taking

B. bringing

C. stealing  

D. borrowing.

3. According to the survey, what kind of things are most taken away by Americans?

A. towels and pillows

B. bathrobes and remote controls.

C. towels and Bibles

D. bathrobes and towels.

4. What can we infer from the passage?  

A. New York is not one of the top 10 destinations Americans most want to see.

B. U.K. has the most time off work than other nationalities.

C. Most Americans think it is not a big deal for them to steal from the hotels.

D. Germans think the British are the world's worst travellers.

5. What's the best title of this passage?

A. Chinese were announced as the world's worst travellers.

B. The global worst travellers were announced.

C. Disney World is the best destination to Americans.  

D. European travellers were the best in the world

题型:单项选择题

转化在提量时,若首先提高原料烃量,会出现()的不良后果

A、水碳比升高

B、转化率升高

C、转化率降低

D、水碳比降低

题型:单项选择题

全面贯彻“三个代表”思想,核心是()

A.坚持党的先进性

B.坚持与时俱进

C.坚持执政为民

D.坚持以人为本

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