2001年中国承办的亚太经合组织会议在北京隆重召开。
错误：
改正：
错误：北京
改正：上海
DNA上的内含子是（）
A.编码序列
B.结构基因序列
C.出现在成熟mRNA中
D.出现在hnRNA中
E.不被转录
He isn't _____ his father, but he _____ his father very much. [ ]
A. like; likes
B. look; likes
C. like; looks
D. likes; like
