问题 单项选择题

年会活动举行抢答比赛,一共有10道题,评分标准为:每人有10分基本分,每答对1题加4分,答错一题扣1分,不答题不加分也不扣分,为了保证至少有3人得分相同,则最少有多少人参加比赛( )

A.45

B.50

C.91

D.103

答案

参考答案:C

解析: 最少的分数是10道题全错,分数是0;最多的分数是10道题全对,分数是50;但是0—50之间的39、43、44、47、48、49不可能出现,因此有51-6=45(种)可能。根据抽屉原理的最不利原则,45×2+1=91。因此,最少有91人参加竞赛,才能保证至少有3人得分相同。

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多途选项。

The first chocolate was eaten by Mayan and Aztec people in Central and South America hundreds of years ago. ___小题1:____ the cocoa bean was used to make a chocolate drink that the people enjoyed very much. Much later, the cocoa bean was brought across to Europe and people there also came to love the taste of chocolate.

__小题2:___ One of the items he sold was cocoa powder to make into drinks. In 1831, he opened a small factory to make cocoa powder from cocoa beans. John Cadbury believed that alcohol was an important cause of poverty and he wanted to encourage people to drink chocolate instead. A few years later a man called Joseph Fry invented a way to make chocolate bars, and so for the first time people had the chance to eat chocolate instead of only drinking it. At first, chocolate was a luxury and only the rich people could afford it. ___小题3:___

___小题4:___ Milk chocolate came later and this was made by adding milk of milk

powder to the chocolate. Cadbury’s introduced their first milk chocolate bar in 1879. Their most famous chocolate, Cadbury’s Milk Bar, was introduced in 1905. It has been a best seller in Britain and around the world for nearly 100 years.

The Cadbury factory is still in Birmingham and the chocolate produced there is eaten all over the world. 小题5:   

A.Later, as more and more chocolate bars were produced and sold, it became cheaper.

B.John Cadbury wanted people to drink chocolate instead of alcohol.

C.However, at first only plain chocolate was produced.

D.Every year, thousands of visitors visit the factory to see how chocolate is made.E. In 1824, John Cadbury opened a small shop in Birmingham.

F. More and more chocolate was manufactured.

G. In those days, the people did not really eat chocolate;

填空题