要把408本书放在一个5层的书架上,平均每层大约放多少本书?
408÷5,
≈400÷5,
=80(本).
答:平均每层大约放80本书.
钢筋的工程量计算中,图示钢筋长度为( )
A.构件尺寸-保护层厚度+两端弯钩长度B.构件尺寸-保护层厚度+弯起钢筋增加长度C.构件尺寸-保护层厚度+弯起钢筋增加长度+两端弯钩长度+图纸注明的搭接长度D.构件尺寸-保护层厚度+弯起钢筋增加长度+图纸注明的搭接长度
A.She likes modem art.
B.A lot of other people like modern art, too.
C.A lot of people came to the opening.
D.Modern art is not attractive to the woman.