2017
骞存睙鑻忕渷娉板窞甯傚叴鍖栧競闄跺簞涓績鏍′腑鑰冩暟瀛︿竴妯¤瘯鍗?/p>
涓�銆侀�夋嫨棰橈紙鏈ぇ棰樺叡
10
灏忛锛屾瘡灏忛
3
鍒嗭紝鍏?/p>
30
鍒嗭紟鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝鎭?/p>
鏈変竴椤规槸绗﹀悎棰樼洰瑕佹眰鐨勶紝璇峰皢姝ｇ‘閫夐」鐨勫瓧姣嶄唬鍙峰～娑傚湪绛旈鍗＄浉搴斾綅缃笂锛?/p>
1
锛?/p>
4
鐨勫钩鏂规牴鏄紙
锛?/p>
A
锛?/p>
8
B
锛?/p>
2
C
锛幝?/p>
2
D
锛幝?
2
锛庢妸鏁?/p>
7700000
鐢ㄧ瀛﹁鏁版硶琛ㄧず涓猴紙
锛?/p>
A
锛?/p>
0.77
脳
10
6
B
锛?/p>
7.7
脳
10
6
C
锛?/p>
0.77
脳
10
7
D
锛?/p>
7.7
脳
10
7
3
锛庡鍥撅紝
AB
鈭?/p>
CD
锛屸垹DCE=80掳锛屽垯鈭?/p>
BEF=
锛?/p>
锛?/p>
A
锛?00掳
B
锛?0掳
C
锛?0掳
D
锛?0掳
4
锛庣偣
M
锛堬梗
4
锛岋梗
1
锛夊叧浜?/p>
y
杞村绉扮殑鐐圭殑鍧愭爣涓猴紙
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A
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锛堬梗
4
锛?/p>
1
锛?/p>
B
锛?/p>
锛?/p>
4
锛?/p>
1
锛?/p>
C
锛?/p>
锛?/p>
4
锛岋梗
1
锛?/p>
D
锛?/p>
锛堬梗
4
锛岋梗
1
锛?/p>
5
锛庡紡瀛?/p>
y=
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x
鐨勫彇鍊艰寖鍥存槸锛?/p>
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A
锛?/p>
x
鈮?/p>
0 B
锛?/p>
x
鈮?/p>
0
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x
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1
C
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0
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x
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1
D
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x
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1
6
锛庝笅闈㈢殑鍥惧舰涓紝鏃㈡槸杞村绉板浘褰㈠張鏄腑蹇冨绉板浘褰㈢殑鏄紙
锛?/p>
A
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B
锛?/p>
C
锛?/p>
D
锛?/p>
7
锛庡凡鐭ユ煇鍦嗛敟鐨勫簳闈㈠渾鐨勫崐寰?/p>
r=2cm
锛屽皢鍦嗛敟渚ч潰灞曞紑寰楀埌涓�涓渾蹇冭
胃
=120掳鐨勬墖褰紝
鍒欒鍦嗛敟鐨勬瘝绾块暱
l
涓猴紙
锛?/p>
A
锛?/p>
3cm
B
锛?/p>
4cm
C
锛?/p>
5cm
D
锛?/p>
6cm
8
锛庡叧浜?/p>
x
鐨勪笉绛夊紡
x
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b
鈮?/p>
0
鎭版湁涓や釜璐熸暣鏁拌В锛屽垯
b
鐨勫彇鍊艰寖鍥存槸锛?/p>
锛?/p>
A
锛庯梗
3
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b
锛滐梗
2
B
锛庯梗
3
锛?/p>
b
鈮わ梗
2
C
锛庯梗
3
鈮?/p>
b
鈮わ梗
2
D
锛庯梗
3
鈮?/p>
b
锛滐梗
2
9
锛庡鍥撅紝娓彛
A
鍦ㄨ娴嬬珯
O
鐨勬涓滄柟鍚戯紝
OA=6km
锛屾煇鑸逛粠娓彛
A
鍑哄彂锛屾部鍖楀亸涓?/p>
15掳鏂瑰悜
鑸涓�娈佃窛绂诲悗鍒拌揪
B
澶勶紝姝ゆ椂浠庤娴嬬珯
O
澶勬祴寰楄鑸逛綅浜庡寳鍋忎笢
60掳鐨勬柟鍚戯紝鍒欒鑸硅埅
琛岀殑璺濈锛堝嵆
AB
鐨勯暱锛変负锛?/p>
锛?/p>