问题
填空题
拌制36吨的混凝土,其中水泥占
|
答案
(36-36×
-7.2)÷36,1 4
=(36-9-7.2)÷36,
=(27-7.2)÷36,
=19.8÷36,
=
,11 20
答:石子占
.11 20
拌制36吨的混凝土,其中水泥占
|
(36-36×
-7.2)÷36,1 4
=(36-9-7.2)÷36,
=(27-7.2)÷36,
=19.8÷36,
=
,11 20
答:石子占
.11 20