15.16.17.18.
1个回答
15/A
16.B
17.k>2
18.③④
19.移项得:3x/2-2x>1
-x/2>1
x<-2
相关问题
14X15+15X16+16X17+17X18=?
15,16,17,18,19
20²-19²+18²-17²+16²-15²+2²
12.13.14.15 16.17.18
14,15,16,17,18,19,20
15+16+17+18+19.+24+25
物理14-15-16-17-18-19
300-(17-18)-(16-17)-(15-16)-(14-15)-(13-14)-(12-13)-(11-12)计
10,20,14,13,18,15,16,16,16,19,(),17
20-19+18-17+16-15+…+2-1=______.