6.What is the relationship between the two speakers？
A.Teacher and student.
B.Doctor and patient.
C.Mother and son.
5.What did the man do during the seven-day holiday？
A.He went on a tour.
B.He went to see a doctor.
C.He went back to his hometown.
听下面一段对话，回答第6题和第7题。
4.What qualities does the man think are important for the job as a doctor？
A.Generous and creative.
B.Kind and confident.
C.Independent and flexible.
3.What will the couple do if it is raining this weekend？
A.Go camping. B.Stay at home. C.Go to the cinema
2.How many languages can Alice speak？
A.Four. B.Five. C.Six.
1.What are they talking about？
A.Learning. B.Jobs. C.People.
(Ⅰ)若在①处填空“n＝2009”，请求出在输出框②处输出的y的值；
(Ⅱ)若在①处填空“x>22008－4”，请求出在输出框②处输出的n的值.
6.下图是一个程序框图，其中判断框①处缺少一个判断条件，②为一输出框.
5.有5张卡片，上面分别标有数字0,1,2,3,4.求：
①从中任取二张卡片，二张卡片上的数字之和等于4的概率；
②从中任取2次卡片，每次取1张，第一次取出卡片，记下数字后放回，再取第二次.两次取出的卡片上的数字之和恰好等于4的概率.
4.一企业生产不同型号的水泥19 500袋，它们来自甲、乙、丙3条不同的生产线，为检查这些水泥的质量，决定采用分层抽样的方法进行检测.已知甲、乙、丙三条生产线抽取的个体数组成一个等差数列，则乙生产线生产了
袋水泥.
