题干
Which of the following is right?
| A．Sam likes doing chores. |
| B．Sam did chores only on weekends. |
| C．Sam likes doing chores only on weekends. |
| D．Sam really didn't like doing chores. |
A：
B：
C：
D：
答案(点此获取答案解析）
D
，则不等式
的解集是
