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问题 选择题

河姆渡和半坡原始居民的距今年代是[ ]

A．约五六千年      

B．约一万八千年    

C．约七十至二十万年  

D．约四千多年

答案

答案：A

补全对话，情景问答
完成对话，把正确选项的字母代号写在横线上，其中有两项多余。
A. She has it at school.
B. Yes, she does.
C. No, I don't like eggs at all.
D. Yes, she likes it very much.
E. Yes, I like it very much.
F. She has hamburgers and chicken.
G. Yes, I like bananas.
A: Do you like eggs?
B:   1 
A: Do you like chicken?
B:   2 
A: Does your sister like apples? 
B:   3 
A: What does she have for lunch?
B:   4 
A: Where does she have lunch?
B:   5 
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单项选择题

关于艾滋病的传播途径哪些是错误的（）

A.通过性交而传播

B.通过共用注射器吸毒而传播

C.通过HIV阳性的母亲的乳汁

D.与HIV阳性的人握手而传播

E.HIV阳性的器官移植给他人
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