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1
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9
椤?/p>
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2019-2020
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8
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3
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24
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1
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锛?/p>
A
锛?/p>
B
锛?/p>
+y
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锛?/p>
D
锛?/p>
2
锛庤绠楋紙
x+1
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锛?/p>
x
锕?/p>
1
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锛?/p>
x
2
+1
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A
锛?/p>
x
2
锕?/p>
1
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x
3
锕?/p>
1
C
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x
4
+1
D
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x
4
锕?/p>
1
3
锛庡凡鐭?/p>
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鐨勫�兼槸锛?/p>
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锛?
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锕?/p>
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2
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2
4
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A
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5
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x
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y
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4
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娉曠‘瀹?/p>
6
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7
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鐨勫瀭鐩村钩鍒嗙嚎锛?/p>
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DE=1cm
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鐨勯暱涓猴紙
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A
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6
cm
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8
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3
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4
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8
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濡傚浘锛?/p>
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鍏辨湁锛?/p>
锛?/p>
A
锛?/p>
4
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5
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6
涓?/p>
D
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7
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6
涓皬棰橈紝姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
18
鍒嗭級
9
锛庤浣垮垎寮?
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x
闇�婊¤冻鐨勬潯浠舵槸
_________
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10
锛庡凡鐭ヤ竴涓杈瑰舰鐨勫唴瑙掑拰绛変簬
900
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_________
锛?/p>
11
锛庢眽瀛?/p>
鈥?/p>
鐜嬨�佷腑銆佺敯
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_________
锛?/p>
12
锛庤嫢
x
2
锕?/p>
kxy+25y
2
鏄竴涓畬鍏ㄥ钩鏂瑰紡锛屽垯
k
鐨勫�兼槸
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13
锛庝笁瑙掑舰鍛ㄩ暱鏄鏁帮紝鍏朵腑涓よ竟鐨勯暱鏄?/p>
2
鍜?/p>
5
锛屽垯绗笁杈归暱鏄?/p>
_________
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