1
骞夸笢鐪?/p>
2019
灞婇珮涓夋渶鏂版ā鎷熻瘯棰樺垎绫绘眹缂栵細鏁板垪
鏁板锛堢悊绉戯級
涓�銆侀�夋嫨銆佸～绌洪
1
銆?/p>
锛堝箍涓滅渷
2019
灞婇珮涓?/p>
3
鏈堜竴妯★級
璁?/p>
涓虹瓑宸暟鍒?/p>
鐨勫墠
椤瑰拰锛?/p>
鑻?
锛?
锛?
鍒?/p>
锛?/p>
锛?/p>
A. 4
B. 5
C. 6
D. 7
2
銆?/p>
锛堝箍宸炲競
2019
灞婇珮涓?/p>
3
鏈堢患鍚堟祴璇曪紙涓�锛?/p>
锛夎
n
S
鏄瓑宸暟鍒?/p>
飦?/p>
飦?/p>
n
a
鐨勫墠
n
椤瑰拰锛岃嫢
m
涓哄ぇ
浜?/p>
1
鐨勬鏁存暟锛屼笖
2
1
1
1
m
m
m
a
a
a
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
锛?/p>
2
1
11
m
S
飥?/p>
飥?/p>
锛屽垯
m
飥?/p>
A.11
B.10
C.6
D.5
3
銆?/p>
锛堝箍宸炲競澶╂渤鍖?/p>
2019
楂樿�冧簩妯★級璁剧瓑姣旀暟鍒?/p>
{
a
n
}
鐨勫墠
n
椤瑰拰涓?/p>
S
n
锛岃嫢
S
3
锛?/p>
9
锛?/p>
S
6
锛?/p>
36
锛屽垯
a
7
+
a
8
+
a
9
锛濓紙
锛?/p>
A
锛?/p>
144
B
锛?/p>
81
C
锛?/p>
45
D
锛?/p>
63
4
銆?/p>
锛堝箍宸炲競
2019
灞婇珮涓?/p>
3
鏈堢患鍚堟祴璇?/p>
锛堜竴锛?/p>
锛?/p>
璁?/p>
n
S
鏄瓑姣旀暟鍒?/p>
飦?/p>
飦?/p>
n
a
鐨勫墠
n
椤瑰拰锛?/p>
鑻?/p>
3
3
S
飥?/p>
锛?
6
27
S
飥?/p>
锛屽垯
1
a
飥?/p>
銆?/p>
5
銆?/p>
锛堝箍涓滅渷
2019
灞婇珮涓?/p>
3
鏈堜竴妯★級鍦ㄦ暟鍒?/p>
{
a
n
}
鐨勫墠
n
椤瑰拰涓?/p>
n
S
锛屼笖
a
1
锛?/p>
2
锛?/p>
a
n
+
a
n
+1
锛?/p>
2
n
锛?/p>
n
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N
锛?/p>
锛?/p>
锛屽垯
S
13
锛?/p>
A
锛?/p>
3
4
2
13
飥?/p>
B
锛?/p>
3
2
2
13
飥?/p>
C
锛?/p>
3
4
2
14
飥?/p>
D
锛?/p>
3
2
2
14
飥?/p>
6
銆?/p>
锛堟宸炲競
2019
楂樹笁
3
鏈堜竴妯★級绛夊樊鏁板垪
{
a
n
}
鐨勫墠
n
椤瑰拰涓?/p>
S
n
锛屼笖婊¤冻
2
S
3
锛?/p>
a
3
+
a
7
锛?/p>
18
锛?/p>
鍒?/p>
a
1
锛濓紙
锛?/p>
A
锛?/p>
1
B
锛?/p>
2
C
锛?/p>
3
D
锛?/p>
4
7
銆?/p>
锛堟宸炲競
2019
楂樹笁
3
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{
a
n
}
鐨勫墠
n
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S
n
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a
1
锛?/p>
1
锛屼笖婊¤冻锛?/p>
2
S
n
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a
n
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1
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a
3
+
a
4
+
a
5
锛?/p>
锛?/p>
8
銆?/p>
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2019
楂樹笁涓�妯★級宸茬煡鏁板垪
{
a
n
}
鏄瓑姣旀暟鍒楋紝
a
1
锛?/p>
5
锛?/p>
a
2
a
3
锛?/p>
200
锛屽垯
a
5
锛濓紙
锛?/p>
A
锛?/p>
100
B
锛?/p>
卤
100
C
锛?/p>
80
D
锛?/p>
卤
80
9
銆?/p>
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2019
灞婇珮涓夌涓�娆★紙
2
鏈堬級璋冪爺鑰冭瘯锛?/p>
璁?/p>
S
n
涓虹瓑宸暟鍒楋經
a
n
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n
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S
5
锛?/p>
25
锛?/p>
a
3
锛?/p>
a
4
锛?/p>
8
锛屽垯锝?/p>
a
n
锝濈殑鍏樊涓?/p>
(A
锛夛紞
2
锛?/p>
B
锛夛紞
1
(C
锛?/p>
1
(D
锛?/p>
2
10
銆?/p>
锛堣倗搴嗗競
2019
楂樹笁浜屾ā锛夎
S
n
涓虹瓑宸暟鍒?/p>
{
a
n
}
鐨勫墠
n
椤瑰拰锛岃嫢
S
6
锛濓梗
33
锛?/p>
a
1
锛?/p>
2
锛屽垯
a
5
锛濓紙
锛?/p>