娴欐睙鐪?/p>
2019
骞村垵涓瘯涓氱敓瀛︿笟鑰冭瘯锛堜箟涔屽競鍗凤級
鏁板璇曢鍗?/p>
鑰冪敓椤荤煡锛?/p>
1.
鍏ㄥ嵎鍏?/p>
4
椤碉紝
鏈?/p>
3
澶ч锛?/p>
24
灏忛
.
婊″垎涓?/p>
120
鍒?/p>
.
鑰冭瘯鏃?/p>
闂?/p>
120
鍒嗛挓
.
2.
鏈嵎绛旀蹇呴』鍋氬湪绛旈绾哥殑瀵瑰簲浣嶇疆涓婏紝鍋氬湪璇曢鍗蜂笂
鏃犳晥
.
3.
璇疯�冪敓灏嗗鍚嶃�佸噯鑰冭瘉鍙峰～鍐欏湪绛旈绾哥殑瀵瑰簲浣嶇疆涓婏紝
骞惰鐪熸牳鍑嗘潯褰㈢爜鐨勫鍚嶃�佸噯鑰冭瘉鍙?/p>
.
4.
浣滃浘鏃讹紝鍙厛浣跨敤
2B
閾呯瑪锛岀‘瀹氬悗蹇呴』浣跨敤
0.5
姣背鍙?/p>
浠ヤ笂鐨勯粦鑹茬瀛楃瑪娑傞粦
.
5.
鏈鑰冭瘯涓嶈兘浣跨敤璁＄畻鍣?/p>
.
娓╅Θ鎻愮ず锛氳浠旂粏瀹￠锛岀粏蹇冪瓟棰橈紝鐩镐俊浣犱竴瀹氫細鏈夊嚭鑹茬殑
琛ㄧ幇锛?/p>
鍙?/p>
鑰?/p>
鍏?/p>
寮?/p>
锛?/p>
浜?/p>
娆?/p>
鍑?/p>
鏁?/p>
y=ax
2
+bx+c
鍥?/p>
璞?/p>
鐨?/p>
椤?/p>
鐐?/p>
鍧?/p>
鏍?/p>
鏄?
)
4
4
2
(
2
a
b
ac
a
b
飥?/p>
飥?/p>
锛?/p>
锛?/p>
璇?/p>
鍗?/p>
鈪?/p>
璇存槑锛?/p>
鏈嵎鍏辨湁
1
澶ч锛?/p>
10
灏忛锛?/p>
姣忓皬棰?/p>
3
鍒嗭紝
鍏?/p>
30
鍒嗭紟
璇?/p>
鐢?/p>
2B
閾呯瑪鍦ㄢ�滅瓟棰樼焊鈥濅笂灏嗕綘璁や负姝ｇ‘鐨勯�夐」瀵瑰簲鐨勫皬鏂?/p>
妗嗘秱榛戙�佹秱婊★紟
涓�銆侀�夋嫨棰?/p>
(
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澶氶�夈�侀敊閫夛紝鍧囦笉缁欏垎
)
1.
锛?/p>
3
鐨勭粷瀵瑰�兼槸
A
锛?/p>
3 B
锛庯紞
3 C
锛庯紞
D
锛?/p>
2
锛庡鍥撅紝
DE
鏄柍
ABC
鐨勪腑浣嶇嚎锛岃嫢
BC
鐨勯暱鏄?/p>
3cm
锛屽垯
DE
鐨勯暱鏄?/p>
A
锛?/p>
2cm B
锛?/p>
1.5cm C
锛?/p>
1.2cm D
锛?/p>
1cm
3
锛庝笅鍒楄绠楁纭殑鏄?/p>
A
锛?/p>
2
4
6
x
x
x
飥?/p>
飥?/p>
B
锛?/p>
2
3
5
x
y
xy
飥?/p>
飥?/p>
C
锛?/p>
6
3
2
x
x
x
飩?/p>
飥?/p>
D
锛?/p>
3
2
6
(
)
x
x
飥?/p>
4
锛庡鍥撅紝涓嬪垪姘村钩鏀剧疆鐨勫嚑浣曚綋涓紝涓昏鍥句笉鏄?/p>
锛庯紟
闀挎柟褰㈢殑
鏄?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
3
1
3
1
E
A
B
C
D