题目
题型:不详难度:来源:
a |
b |
3 |
2 |
a+b |
b |
答案
a |
b |
3 |
2 |
∴a=
3 |
2 |
∴
a+b |
b |
| ||
b |
5 |
2 |
故答案为:
5 |
2 |
核心考点
举一反三
x |
5 |
y |
2 |
x+y |
x-y |
a |
2 |
b |
3 |
c |
4 |
A.320cm | B.320m | C.2000cm | D.2000m |
a |
b |
3 |
2 |
a+b |
b |
a |
b |
3 |
2 |
3 |
2 |
a+b |
b |
| ||
b |
5 |
2 |
5 |
2 |
x |
5 |
y |
2 |
x+y |
x-y |
a |
2 |
b |
3 |
c |
4 |
A.320cm | B.320m | C.2000cm | D.2000m |