A. | B. | C.9a=6b | D. |
A.l÷x=y | B.= | C.x+y=2 | D.x:3=3:y |
A.y+x=7.9 | B.xy= | C.y=x | D.y=x+0.5 |
A.1:500000 | B.1:50000 | C.1:5000000 | D.1:1500000 |
A.1∶16 | B.5∶8 | C.8∶5 | D.16∶1 |
A.扩大4倍 | B.扩大8倍 | C.扩大16倍 |
A.y =3+x | B.y= | C.z= |
A.1:20000 | B.1:200000 | C.1:2000000 | D.1:20000000 |
A.成正比例 | B.成反比例 | C.不成比例 |
A.成正比例 | B.成反比例 | C.不成比例 |