题目内容
试题答案
C
如图,AO⊥BO,CO⊥DO,∠BOC与∠AOD的度数之比为2∶7,则∠AOD的度数为________
如图,AO⊥BO,CO⊥DO,∠BOC与∠AOD的度数之比为1∶2,则∠AOD=________度.