- 问题详情:Moststudentshavebiology(生物)classesintheclassroomsorthelabsinChina.Butseveraldaysago,IhadabiologyclassoutsideinmyAmericanschoo1. Mybiologyteacher,Mr.Kwak,dividedusintothreegroupsandaskedustoplayagameaboutnaturalselection(选择)andhowbirdsfindfood. ...
- 15689