毫升的
是是100米． 
=y×
=z×
，那么x、y、z按照从大到小的顺序排列应是（ ）| A．x＞y＞z | B．z＞y＞x | C．y＞x＞z | D．y＞z＞x |
＞（a、b都不为0），是真分数．
﹣4=
﹣（
+
）=
=×
=  ÷ = |  × = |  + = | 2﹣﹣ = |
| ÷4= | 54× = | 0.42= |  ×0÷= |
、、
、
、( )、( ) 
= 
-
= 6÷
= (
+
)×21
+
=| 直接写出得数 9÷  = | 12× = |  + = |  ÷ = |
（1.125﹣ ）÷0.75= | 3.6÷0.06= |  × = |  ﹣ = |
 × = | 0.13+ +0.87= | | |
×3
÷
；
÷1． | 1﹣40%= | 3.14×8= |  ÷ = |  ÷ = |
2.4× = |  ×5= |  + = |  × = |
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