骨关节病的主要临床特征是()
A.在开口运动中多声破碎音
B.在开口运动中有连续的摩擦音
C.开口受限,咀嚼痛
D.开口型歪曲
E.关节周围区疼痛
参考答案:B
I was ill that day . Otherwise , I ________ the meeting . [ ]
A. should attend
B. could attend
C. would have attended
D. must have attended
BTS3012基站采用单链级联组网时,安装设计规范下一级基站应该连接到上级基站TMU的第()号端口。
A、0
B、1
C、2
D、3