题干
— _________ robot is yours, the big one or the small one?
—The big one.
A：What
B：Which
C：How many
D：Whose
答案(点此获取答案解析）
B
— _________ robot is yours, the big one or the small one?
—The big one.
A：What
B：Which
C：How many
D：Whose
的展开式中第三项的系数是