下列化学用语,通常只表示微观意义,而不表示宏观意义的是( )
A.Ca
B.N
C.2N
D.He
答案:C
---- Where _______ the guidebook? I can’t see it anywhere.
---- I _______ it right here, but now it’s gone.
A.did you put; have put
B.had you put; have put
C.have you put; put
D.were you putting; put
治疗臌胀水湿困脾证,应首选()
A.柴胡疏肝散合胃苓汤
B.实脾饮
C.中满分消丸
D.调营饮
E.附子理苓汤