✔ 最佳答案
Do a conversion-by-cancellation exercise.
(1.7 mL)(1 L/1000 mL) = .0017 L
Notice how the mL unit cancels out by being in the numerator in the first set of parentheses and in the denominator in the second set? That leaves only the L unit.
This is a very useful skill to know for converting units from one form to another. I suggest you practice it.