应与继发性胆脂瘤鉴别的疾病有（）

A.结核性乳突炎

B.中耳癌

C.真性胆脂瘤

D.嗜酸性肉芽肿

E.慢性肉芽肿性乳突炎

补全对话。

Joan : Ann ,      1    

Ann:The future? Well,l think we'll study at home on computers. And       2    

Joan:You think so? What else will we do?

Ann:      3      

Joan:Where will we be able to go on vacation?

Ann:      4      

Joan:The moon?     5      

Ann:Because it's much more interesting on the moon than on the earth!

A. we don't have to go to school.

B. Why don't we take vacations on the earth?

C. We'll take long vacations,too.

D. what do you think of the future?

E. To the moon!

1.             2.             3.             4.             5.