题干
从方框中选择最佳选项补全对话，其中有两项多余。
| A. She has curly hair. B. Is your pen pal a girl? C. Is your pen pal a boy or a girl? D. She’s from America. E. No，she isn’t. F. Only a little. G. Yes, she is. |
A: What are you doing?
B: I’m reading a letter from my pen pal.
A: ____
B: A girl.
A: Where is she from?
B: ____
A: What does she look like?
B:____
A: Is she tall?
B: ____ . She is of medium height.
A: Look at her photo.
B: Oh. She’s good-looking and a little thin. Can she speak Chinese?
A: ____
答案(点此获取答案解析）
C,D,A,E,F
， 
为 
的展开式的第一项（ 
为自然对数的底数）， 
,若任取 
，则满足 
的概率是( )