- + +
985mL=cm3=dm3 5.04dm3=L mL
- = + = - = 1- =
+ = - = 1- - = -0.375=
① - +
② -( - )
③ - + -
④ + +
⑤7-( - )
⑥ + -
小红7~12岁身高和标准身高对比情况统计图