题干
——Who is ______ man with glasses?
——Oh, he's our new English teacher, Mr. Li.
A：a
B：an
C：the
D：/
答案(点此获取答案解析）
C
——Who is ______ man with glasses?
——Oh, he's our new English teacher, Mr. Li.
A：a
B：an
C：the
D：/
在区间
上的零点个数是 ( )