题干
—No one taught ____ English．He learned it _______．
— He is so clever．
A：his; himself
B：his; by himself
C：him; himself
D：him; by himself
答案(点此获取答案解析）
D
满足
，且在-1，0上单调递增，设
，
，
，则
的大小关系是 （ ）