问题 单项选择题

下列哪一种声音格式对声音进行了采样

A.CD音频

B.MIDI音频

C.波形音频

D.以上全部

答案

参考答案:C

解析:了解本题的关键是分析语句“红色零件的供应商名”。首先,“红色零件”涉及到颜色,只有“零件关系”中有“颜色”属性,所以涉及关系P:“供应商名”只有“供应商关系”中有这个属性,所以涉及关系S:若要把“零件关系”和“供应商关系”联系起来,中间必须通过“零件号”和“供应商号”属性传递,所以涉及关系SP。

阅读理解

There is a one-day holiday in most western countries on New Year’s Day. The real celebration begins on New Year’s Eve-the night before New Year’s Day. There are several interesting customs(习惯)in the west, and there are many differences in different countries.

Though Christmas is a good time for families to get together, New Year’s Day is a time for some western people to be with friends. On New Year’s Day, there are always parties. At such parties, there is food, drinks and dances until New Year comes

At midnight, people often say “Happy New Year! ”to each other. In many western countries, fireworks are let off at midnight and some people like to shout aloud to drive away evil spirits.

小题1:People begin to have great celebrations for the New Year on___________.

A.New Year’s Day

B.the night before New Year’s Eve

C.the night of New Year’s Day

D.New Year’s Eve小题2:In the west, ___________on New Year’s Day.

A.friends always get together

B.friends write to each other

C.people can have a week’s holiday

D.people go from one country to another小题3:On New Year’s Eve, western people don’t often____________.

A.say “Happy New Year” to each other

B.let off fireworks

C.sing a Scottish song

D.shout aloud to drive away evil spirits小题4:This passage mainly(主要)tells us___________.

A.western people drink together on New Year’s Day

B.how western people celebrate their New Year’s Day

C.what western people eat on New Year’s Day

D.western people have a good time on New Year’s Day

填空题