题干
I’m ____ of listening his ____ lecture, so I began to read a magazine．
A：interested; interesting
B：fond; content
C：bored; boring
D：tired; tired
答案(点此获取答案解析）
C
满足：当
时，有
，给出如下三个命题：
则
；②若
则
； ③若
则
．