x-15%x=8.5.
x-15%x=8.5,
85%x=8.5,
0.85x=8.5,
0.85x÷0.85=8.5÷0.85,
x=10.
大力提倡“绿色化学”是消除污染的根本手段.下列措施中属于“绿色化学”范畴的是[ ]
A.处理废弃物
B.治理污染点
C.减少有毒物
D.杜绝污染源
Teenagers should do what they can ________ their achievements.
A.to realize
B.realize
C.realized
D.will realize