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问题 单项选择题

冰箱某零部件的加工分为前后两道工序，第一道工序的西格玛水平为4.0，第二道工序的西格玛水平为5.0，则整体西格玛水平为（）

A.4.0

B.5.0

C.4.5

D.不能计算出整体西格玛水平

答案

参考答案：A

完形填空

任务型阅读（10分）

Li Ming and Wang Yan took a study tirp to San Francisco in July this year. San Francisco is a large and beautiful city in the United States. They went there to attend(参加) English lessons. They arrived in San Francisco at midnight(午夜). The next day they went sightseeing. They rode the cable cars, saw the Golden Gate Bridge(金门大桥), and had lunch at Fisherman’s Wharf(渔人码头). On the third day they visited the school where they would had lessons. They had English lessons there in the following(接下来的) ten days. They liked the campus(校园). They thought that it was very beautiful.

They toured around San Francisco before they left. Then they took the train to other cities because they wanted to see more of the United States. The trip took them ten days. They had a wonderful trip. Perhaps they will go there again next summer.

阅读短文内容，回答下列问题。

小题1:Where is San Francisco?

                                                                        

小题2:In which month did they take a study trip to San Francisco?

                                                                        

小题3:How did they go to other cities?

                                                                        

小题4:What did they think of the study trip?

                                                                        

小题5:How long did they have English lessons?

                                                                       
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解答题

一个整数和一个______合成的数叫做带分数．
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