题干
—How did your uncle learn to play the guitar?
—By _______.
A：myself
B：yourself
C：herself
D：himself
答案(点此获取答案解析）
D
—How did your uncle learn to play the guitar?
—By _______.
A：myself
B：yourself
C：herself
D：himself
不能最终被氧化为﹣COOH；
：
，
，那么下列结论正确的是 （ ）