题干
如果实数x，y满足约束条件 {3x+y−6≤0 x−y−2≤0 x≥1
的最大值为（ ）
| y |
| + |
| 1 |
| x |
| + |
| 1 |
A：
B：
C：2
D：3
答案(点此获取答案解析）
C
at 6:30 in the morning. I 
at home. Then I 
at 7:10. I
at 7:30. I 
at 11:45. In the afternoon, we 
class. After school, I 
with my friends. In the evening, I 
or 
. I
at 9:00. This is my day.