一个平行四边形的面积是84平方分米,和它等底等高的三角形面积是______dm2.
84÷2=42(平方分米);
答:三角形的面积为42平方分米.
故答案为:42.
—I can’t stand ___________ hamburgers every noon.
—Then why not stop ________ another kind of food?
A.eating; having
B.to eat; to have
C.eating; to have
D.to eat; having
配制浓缩贮备液的步骤。