某男性患者48岁,缺失,可摘局部义齿修复,基牙I度松动,这种情况下,上可设计()
A.环形卡环
B.固定卡环
C.双臂卡环
D.长臂卡环
E.对半卡环
参考答案:B
______ these tests were being conducted, she was able to read a newspaper.
A.During
B.On occasion
C.While
D.As if
移动通信系统中所采用的多址方式包括()、()、()。