用于观察下颌骨体、升支及髁状突情况的X线片为
A.下颌骨尖牙位片
B.下颌骨升支侧位片
C.下颌骨后前位片
D.下颌骨开口后前位片
E.下颌骨升支切线位片
参考答案:B
—Do you like junk food ?
—Yes, I love hamburgers very much. I often eat .
A.it
B.its
C.them
D.their
后发性白内障是囊外白内障摘除术后晚期主要并发症之一,白内障术后后囊混浊发生率达________。