慢性牙周炎局部治疗包括()。
A.控制菌斑、刮治及根面平整
B.松牙固定术
C.牙周袋内的药物治疗
D.牙周翻瓣术
E.以上均是
参考答案:E
To prevent cybercrime more efficiently, it is important to make new laws and create international standards for them similar to________concerning international airspace.
A.that
B.what
C.one
D.those
机动车仪表板上(如图所示)亮时表示什么?()
A.已开启前照灯近光
B.已开启前雾灯
C.已开启前照灯远光
D.已开启后雾灯