任意两个平行四边形的面积都相等.______.(判断对错)
平行四边形的面积=底×高,若两个平行四边形的高和底不确定,则它们的面积不一定相等,
故答案为:×.
I began to feel ________ in the new school when I saw some familiar faces. [ ]
A. at home
B. at heart
C. at will
D. at sight
防水层采取满粘法施工时,找平层的分隔缝处宜空铺,空铺的宽度宜为()mm。
A.50
B.80
C.100
D.120