尖牙窝一般位于什么牙根尖的上方
A．上颌中切牙B．上颌侧切牙C．上颌尖牙D．上颌前磨牙E．上颌第一磨牙
参考答案：D
Full_________ to looking after three children at home, she no longer has time to enjoy the various activities in the club.
A．attached
B．occupied
C．contributed
D．devoted
泰山处于（）之首。
