安宫牛黄丸的功用是（）
A.清热解毒
B.开窍安神
C.滋阴降火
D.解表清热
E.芳香开窍
参考答案：A, B
— Why don't you put the meat in the fridge?
— It will____fresh for several days.
A. be stayed
B. stay
C. be staying
D. have stayed
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