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问题 单项选择题

若有以下定义：
int a[]=1,2,3,4,5,6,7;
char c1='b'，c2='2';
则数值不为2的表达式是( )。

A．a[1]
B．'d'-c1
C．a['3'-c2]
D．c2-0

答案

参考答案：D

选择题

  以下是一位旅行者在甲、乙、丙、丁四地旅行时写下的微博：

甲：一月还未过半，已经连续下了八天雨，天气预报说今天最高温度是10℃，穿着毛衣走在阴雨的街头心情糟透了。

乙：这里草场稀疏，沙化严重，风吹草低见牛羊。

丙：这里气候温和，牧草繁茂，大量的牲畜在繁忙的港口等待运往欧洲。

丁：气候终年温和，真是个好地方。

根据这些微博回答1～2题。

1．其中描述基多的微博最有可能是[     ]

A．甲        

B．乙    

C．丙    

D．丁

2．该旅行者游历到某地时发现当地的典型植被为常绿硬叶林，对应的微博可能是[     ]

A．甲    

B．乙    

C．丙    

D．丁
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单项选择题

When airlines were deregulated in the 1970s, the average price of a ticket was $135. Three decades later, the average price is $275, there are twice as many in-air collisions, fliers in small markets are at the mercy of predatory carriers, and air rage is at an all-time high. It is time to re-regulate the air travel industry.（）

All of the following statements, if true, weaken the above argument except for which statementA. Because of inflation, a $275 ticket today is actually 10 to 20 percent less expensive than a $135 ticket was in 1975.

B. Deregulation has increased the choices available to fliers in terms of both time of flight and carrier.

C. Airlines are currently flying more than five times as many passenger miles per year as they did in 1975.

D. Compared with passengers in large urban areas, passengers in small markets pay, on average, twice as much per mile flown on domestic flights because their airports are generally served by fewer airlines.

E. Psychologists have been able to determine no connection between the deregulation of the airline industry and the onset of increased levels of air rage.
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