题干
— Let's join the English club.
— ________.
A：Come on
B：Here you are
C：You, too
D：Sounds good
答案(点此获取答案解析）
D
— Let's join the English club.
— ________.
A：Come on
B：Here you are
C：You, too
D：Sounds good
的展开式中，各项系数之和为A,各项二项式系数之和为B,且
,则展开式中常数项的值为 （ ）
