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1.
1.
2.
3.
4.
2. A 10 B
A B
9.8 /
1.
2. 9.8 / 2
3. A
g
3.
A , B , C D
1. A C B D
2. A D B C
3. B C A D
4. B D A C
4.
1.
2.
3.
4.
-
5.
1.
2.
3.
4.
6. ABCD
AB 1. AD
AD 2. BC
BC 3. AD
AC 4. DC
DB
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1.
2.
3.
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2.
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9. 20 /
6
1. 0.3
2. 2.0
3. 3.3
2. 120
v =s/t
10. 20 4
2 1
1. 3.5
2. 3.6
3. 6.0
2. 7.0
v =s/t
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