不是微孔滤膜滤过特点的是
A.孔径均匀,空隙率高
B.滤过阻力小
C.滤过时无介质脱落
D.不易堵塞
参考答案:D
For further details about our newly developed products ________ our company's website.
A.visiting
B.visit
C.to visit
D.visited
水泥混凝土混合料整面机