0 116705 116713 116719 116723 116729 116731 116735 116741 116743 116749 116755 116759 116761 116765 116771 116773 116779 116783 116785 116789 116791 116795 116797 116799 116800 116801 116803 116804 116805 116807 116809 116813 116815 116819 116821 116825 116831 116833 116839 116843 116845 116849 116855 116861 116863 116869 116873 116875 116881 116885 116891 116899 366461
-
.
cm，宽是
cm，求与此长方形面积相等的圆的半径.
已知x=
（
+
）,y=
+
的值.
+
=0，求
的值.
-4
)(2
-4
).
+
-
)×(
+
-
;
+|2x+y-7|=0,则x,y的值是
B.
C.
D.
=
×
B.
=
×
=4×
=|a+b| D.
=13-12=1