创面较干净或已有肉芽组织生长时应用的引流物为()。
A.维生素纱条
B.注射用水纱条
C.碘仿纱条
D.凡士林油纱条
E.酒精纱条
参考答案:D
The professor explained this theory so clearly that this phenomenon was easy enough ____. [ ]
A. for us to work out
B. working out
C. for working out
D. to working out
评价井以发现工业油气流之后的控制储量所命名的油气田(藏)名称为基础,以井位所在油气田(藏)名称的第二个汉字命名。