题干
—________?
—He is a teacher.
A：What does he look like?
B：How old is he?
C：What does he do?
D：Where is he?
答案(点此获取答案解析）
C
—________?
—He is a teacher.
A：What does he look like?
B：How old is he?
C：What does he do?
D：Where is he?
H＋＋OH－，向右移动且溶液呈酸性的是
