问题
选择题
| If you spend 100 yuan in our store this Sunday, you will get a present _______. |
A. for nothing B. for free C. in nothing D. in free |
答案
答案：B
搜题请搜索小程序“爱下问搜题”
| If you spend 100 yuan in our store this Sunday, you will get a present _______. |
A. for nothing B. for free C. in nothing D. in free |
答案：B
，则f（x）等于（）
