AN |
CN |
AM |
AB |
AD |
DM |
DN |
MC |
AM |
MB |
AN |
NC |
DN |
MC |
MN |
BC |
A.1 | B.2 | C.3 | D.4 |
AN |
CN |
AM |
BM |
AD |
AM |
DN |
MC |
AN |
AC |
A.
| B.
| C.
| D.
|
A.2000000km | B.2000km | C.200km | D.20km |
A.a=12cm,b=8cm,c=1.5cm,d=10cm | ||
B.a=5mm,b=3mm,c=2mm,d=3mm | ||
C.a=3m,b=20cm,c=
| ||
D.a=5cm,b=0.02cm,c=7cm,d=0.3cm |
A.5:2 | B.5:3 | C.7:5 | D.5:7 |
A.4、6、5、10 | B.12、8、16、20 | C.1、
| D.
|
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