题目下列化合物中氧原子杂化轨道为sp3的是:( )A. CH3COCH3B. CH3OCH3C. C6H5OHD. C2H4下列化合物中氧原子杂化轨道为sp3的是:( )A. CH3COCH3B. CH3OCH3C. C6H5OHD. C2H4题目解答答案B. CH3OCH3