-13的绝对值是13,倒数是-3.
故答案为:13,-3.
Lucy, eat this ___________. You are too fat. You need (需要) to eat vegetables every day.[ ]
A. banana
B. carrot
C. milk
下列物质中,属于纯净物的是
A.石灰水
B.热空气
C.浓盐酸
D.蒸馏水