AD |
EF |
AE |
EC |
AD |
BD |
AE |
EC |
AD |
EF |
AE |
EC |
AE |
AC |
1 |
2 |
1 |
1+1 |
AO |
AD |
2 |
3 |
2 |
2+1 |
AE |
AC |
1 |
3 |
1 |
1+2 |
AO |
AD |
2 |
4 |
2 |
2+2 |
AE |
AC |
1 |
4 |
1 |
1+3 |
AO |
AD |
2 |
5 |
2 |
2+3 |
AE |
AC |
1 |
1+n |
AO |
AD |
A.
| B.
| C.
| D.以上都错 |
A.2:5 | B.1:250000 | C.250000:1 | D.1:2500 |
b |
a |
c |
b |
A.1cm,2cm,3cm,4cm | B.4cm,5cm,6cm,7cm | ||||||||
C.1cm,
| D.2cm,2
|
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