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1.
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0
30
A
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45
C
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20
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c
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a
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A
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10
6
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2
10
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20
3
D
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20
6
2
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A.
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C.
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3
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n
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1
2
,
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n
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1
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1
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D
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a
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8
2
15
a
a
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5
a
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6
6.
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1
(
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f
x
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1,
2
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2
2
1
0
x
y
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B.
2
2
1
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2
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y
x
y
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x
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4
z
x
y
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鐨勬渶澶у�间负锛?/p>
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A
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14
B
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11
C
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12
D
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10
8.
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P
鏄弻鏇茬嚎
1
9
2
2
2
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y
a
x
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0
4
3
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y
x
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2
1
,
F
F
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10
1
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PF
锛屽垯
2
PF
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(
)
A
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2 B
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18
C
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2
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18
D
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16
9.
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sin
cos
y
x
x
x
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鐨勫浘璞′笂鐨勭偣
0
0
(
,
)
x
y
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k
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0
(
)
k
g
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