A certain salad dressing made only of oil and vinegar is premixed and sold in the grocery store. What is the ratio of oil to vinegar in the mix?
(1) An 18.6-ounce bottle of the salad dressing contains 12.4 ounces of vinegar.
(2) In a 32-ounce bottle of the salad dressing, there is half as much oil as there is vinegar.
In the sentence “Pepys slipped on his dressing-gown.” “slip on” means ______.
追肥 top dressing