对于可逆反应A(s)+ B (g)2C(g);△H<0,平衡常数为K,下列说法正确的是
最早系统阐述中医临床医学的著作是( )
有西方学者认为:“近代世界赖以建立的种种发明与发现可能有一半来源于中国”。传入欧洲并对“近代世界”的到来产生了重大影响的中国科技成就是( )
I can’t leave. She told me that I ______ stay here until she comes back.
—— Do you mind my opening the window? It’s a bit hot in here. —— ______ , as a matter of fact
It’s high time you had your hair cut ; it’s getting _______ .