問題詳情

15.What is the average concentration range of dissolved silicate in north pacific deep waters?
(A) 20~40 nM,
(B) 40~80 μM,
(C) 250~300 μM,
(D) 150~160 μM,
(E) 190~200 μM

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