答案:
(2×100-100)÷(3-1/2)=80(名)
学生:80÷2=40(棵)
老师:100-40=60(棵)
2024-10-31
2024-10-30
2024-10-29
2024-10-28
2024-10-25
2024-10-24
2024-10-23