【单选题】成熟的红细胞主要以糖酵解供能的原因是( )
【简答题】When there are small children around, it is necessary toput the bottles of pills out of _____. A) reach B) hand C) hold D) place
【多选题】约束 性固定成本是指不受管理当局短期决策行为影响的那部分固定成本,它包 括 ()
【简答题】I was late yesterday (因为) the bad traffic.