题干
为下列问句选择适当的答句。
①____ What's your friend's name? A．Yes, she is.
②____ Does she have long hair? B．Yes, they are.
③____ Are they good friends? C．He's short.
④____ Is your brother tall or short? D．Yes, she does.
⑤____ Is she thin? E．Liu Tong.
答案(点此获取答案解析）
E,D,B,C,A
的展开式中所有系数的和为128，则展开式中
的系数是
