容易粘连的药物是( )
A.芒硝B.大青石C.芦荟D.鲜地黄E.苦杏仁
参考答案:C
This small mountain village is so perfect a place for holidays that visitors never leave it _________.
A.feeling disappointing
B.felt disappointing
C.feeling disappointed
D.felt disappointed
压缩机的常见类型。