A:陕甘宁边区
B:东北解放区
C:南方革命根据地
D:华北敌后根据地
亲代的许多性状之所以在子代身上体现,原因是( )
如图,将矩形纸片ABCD沿对角线BD折叠,点C落在点E处,BE与AD相交于点F,∠EDF=38°,则∠DBE的度数是( )
Cheng Long and Li Lianjie have much _______. And they often play similar roles in the movies.