問題詳情

21) What is the pore size of most commonly used filters for separating particles and dissolved substances inmarine waters?
(A) 0.45uM,
(B) 0.45mm,
(C) 0.45cm,
(D) 0.45um,
(E) 0.2mm

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增