问题
选择题
I'd appreciate ___________ if you would like to teach me how to use the computer. [ ]
A. that
B. it
C. this
D. you
答案
答案：B
搜题请搜索小程序“爱下问搜题”
I'd appreciate ___________ if you would like to teach me how to use the computer. [ ]
A. that
B. it
C. this
D. you
答案：B
某企业生产和销售甲、乙、丙三种产品，全年固定成本为144000元，有关资料见表：
| 产品 | 单价(元) | 单位变动成本(元) | 单位边际贡献(元) | 销量(件) |
| 甲 | 100 | 80 | 20 | 1000 |
| 乙 | 100 | 70 | 30 | 2000 |
| 丙 | 80 | 40 | 40 | 2500 |