问题
解答题
梯形的面积等于平行四边形面积的一半.______.
答案
因为梯形的面积=(上底+下底)×高÷2,平行四边形的面积=底×高,
若不知道二者的底和高的大小关系,则没法比较其面积大小.
故答案为:错误.
梯形的面积等于平行四边形面积的一半.______.
因为梯形的面积=(上底+下底)×高÷2,平行四边形的面积=底×高,
若不知道二者的底和高的大小关系,则没法比较其面积大小.
故答案为:错误.
完形填空。 | ||||
Bedtime stories are one of the delights of early childhood. But according to Dr.Julie Sprecadbury form Queensland University. parents should not 1 up reading to their children 2 they enter mary school. She says listening to.reading and discussing the stories help chidren's 3 . "My 4 indicates that once children can read themseives. most parents stop reading 5 them." Dr.Spreadbury says. " 6 may be at the end of Year I,which is far too 7 ." Dr.Spreadbury says 8 reading not only gives children a good start at school.but brings parents and their children closer. "This makes it 9 for then to open up and talk to parents about things that are worrying them,or things they are 10 in their everyday life." | ||||
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