40. 若要詢問船上的汙水櫃數量時，下列何句較為適當？
(A) How many sludge tanks do you have?
(B) How much sludge do you have?
(C) How many overflow tanks do you have?
(D) How much overflow water do you have?

答案：登入後查看
統計： A(84), B(19), C(10), D(3), E(0) #3002776