2019-2020
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涓�銆侀�夋嫨棰橈細鏈ぇ棰樻湁
10
涓皬棰橈紝姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
30
鍒嗭紟鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝鍙湁涓�椤?/p>
鏈�绗﹀悎棰樼洰瑕佹眰锛?/p>
1
锛庢姏鐗╃嚎
y=
锕?/p>
x
2
+1
鐨勯《鐐瑰潗鏍囨槸锛?/p>
锛?/p>
A
锛庯紙
0
锛?/p>
1
锛?/p>
B
锛庯紙
锛?/p>
1
锛?/p>
C
锛庯紙锕?/p>
锛岋梗
1
锛?/p>
D
锛庯紙
2
锛岋梗
1
锛?/p>
2
锛庡湪鍗婂緞涓?/p>
12
鐨勨姍
O
涓紝
60
掳鍦嗗績瑙掓墍瀵圭殑寮ч暱鏄紙
锛?/p>
A
锛?/p>
6
蟺
B
锛?/p>
4
蟺
C
锛?/p>
2
蟺
D
锛?/p>
蟺
3.
濡傚浘锛?/p>
AB
鏄姍
O
鐨勭洿寰勶紝鐐?/p>
C
鍦ㄢ姍
O
涓婏紝鑻?/p>
16
C
飪?/p>
飥?/p>
飩?/p>
锛屽垯
BOC
飪?/p>
鐨勫害鏁版槸
锛?/p>
锛?
A.
74
飩?/p>
B.
48
飩?/p>
C.
32
飩?/p>
D.
16
飩?/p>
4
锛庤嫢
锛屽垯
鐨勫�间负锛?/p>
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
5
锛庝笅鍒楀懡棰樻纭殑鏄紙
锛?/p>
A
锛庝笁鐐圭‘瀹氫竴涓渾
B
锛庡钩鍒嗗鸡鐨勭洿寰勫瀭鐩翠簬寮?/p>
C
锛庣瓑鍦嗕腑鐩哥瓑鐨勫渾蹇冭鎵�瀵圭殑寮х浉绛?/p>
D
锛庡渾鍛ㄨ鐨勫害鏁扮瓑浜庡渾蹇冭搴︽暟鐨勪竴鍗?/p>
6
锛庡鍥炬墍绀猴紟鍦ㄧ瓑鍒嗙殑鍦嗗舰绾哥墖涓婁綔闅忔満鎵庨拡瀹炶劯锛岄拡澶存墡鍦ㄩ槾褰卞尯鍩庡唴鐨勬鐜囦负锛?/p>
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
7
锛庡湪
Rt
鈻?/p>
ABC
涓紝鈭?/p>
C=90
掳锛?/p>
AB=5
锛?/p>
BC=4
锛岄偅涔?/p>
cosA
涓猴紙
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
B
O
C
A
绗?/p>
3
棰?/p>
绗?/p>
6
棰?/p>
绗?/p>
7
棰?/p>