题目先天性颅内动脉瘤最好发于A. Willis环及大脑中动脉分叉处B. 脑动脉C. 脉络膜前动脉D. 胼周动脉E. 椎基底动脉先天性颅内动脉瘤最好发于A. Willis环及大脑中动脉分叉处B. 脑动脉C. 脉络膜前动脉D. 胼周动脉E. 椎基底动脉题目解答答案A. Willis环及大脑中动脉分叉处