平安帖
参考答案:为东晋王羲之书写尺牍作品。今存墨迹本为唐代双钩摹搨,硬黄纸本。纵24.7厘米,4行27字。收藏于台北故宫博物院。
-He seems to be doing nothing, but he is just waiting for his chance.
A.actually
B.gradually
C.frequently
D.certainly
仅用于防止火灾蔓延的消防系统是()。