牙周溢脓首选的漱口水()
A．朵贝尔漱口水
B．甲硝唑配制液
C．3%双氧水稀释2倍
D．0.1%利凡诺尔液
E．稀醋酸溶液
参考答案：C
What can you see in my room? [ ]
A. I can see a bed.
B. It's nice.
C. I have two windows.
单个军人队列动作的内容有哪些？（）
A、立正
B、稍息
C、跨立
D、停止间转法
