题干
Could you please do the dishes? ---________________.
A：Yes, I have to do my homework
B：Sure, no problem
C：Sorry, I’ll do them right away
D：Sure, I’m going to clean my room.
答案(点此获取答案解析）
B
名男同学和
名女同学排成一排照相，且女同学互不相邻，不同排法的种数为
