绮?/p>
鍝?/p>
璇?/p>
鍗?/p>
鎺ㄨ崘涓嬭浇
2019
瀛﹀勾涓婂鏈熸湀鑰冭瘯鍗?/p>
楂樹簩鐞嗙鏁板
鏈瘯鍗峰叡
4
椤碉紝
21
灏忛锛屾弧鍒?/p>
150
鍒嗐�傝�冭瘯鐢ㄦ椂
120
鍒嗛挓銆?/p>
娉ㄦ剰浜嬮」锛?/p>
1
锛庣瓟鍗峰墠锛岃�冪敓鍔″繀灏嗚嚜宸辩殑濮撳悕鍜岃�冪敓鍙枫�佽瘯瀹ゅ彿銆佸骇浣嶅彿濉啓鍦ㄧ瓟棰樺崱涓婏紝骞剁敤
2B
閾呯瑪鍦ㄧ瓟棰樺崱鐨勭浉搴?/p>
浣嶇疆濉秱鑰冪敓鍙枫�?/p>
2
锛庝綔绛旈�夋嫨棰樻椂锛岄�夊嚭姣忓皬棰樼瓟妗堝悗锛岀敤
2B
閾呯瑪鎶婄瓟棰樺崱涓婂搴旈鐩�夐」鐨勭瓟妗堜俊鎭偣娑傞粦锛涘闇�鏀瑰姩锛岀敤
姗＄毊鎿﹀共鍑�鍚庯紝鍐嶉�夋秱鍏朵粬绛旀銆傚啓鍦ㄦ湰璇曞嵎涓婃棤鏁堛�?/p>
3
锛庝綔绛斿～绌洪鍜岃В绛旈鏃讹紝蹇呴』鐢ㄩ粦鑹插瓧杩圭殑閽㈢瑪鎴栫瀛楃瑪浣滅瓟锛岀瓟妗堝繀椤诲啓鍦ㄧ瓟棰樺崱鍚勯鐩寚瀹氬尯鍩熷唴鐨?/p>
鐩稿簲浣嶇疆涓婏紱濡傞渶鏀瑰姩锛屽厛鍒掓帀鍘熸潵鐨勭瓟妗堬紝鐒跺悗鍐嶅啓涓婃柊鐨勭瓟妗堬紱涓嶅噯浣跨敤閾呯瑪鍜屾秱鏀规恫銆備笉鎸変互涓婅姹備綔绛旀棤
鏁堛�?/p>
4
锛庤�冪敓蹇呴』淇濇寔绛旈鍗＄殑鏁存磥銆傝�冭瘯缁撴潫鍚庯紝灏嗚瘯鍗峰拰绛旈鍗′竴骞朵氦鍥炪�?/p>
涓�銆侀�夋嫨棰橈細鏈鍏?/p>
12
灏忛锛屾瘡灏忛
5
鍒嗭紝鍏?/p>
60
鍒嗭紟鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝鍙湁涓�椤规槸绗﹀悎棰樼洰瑕佹眰鐨勶紟
1.
宸茬煡绛夊樊鏁板垪
}
{
n
a
涓紝
12
4
9
7
,
1
,
16
a
a
a
a
鍒?/p>
飥?/p>
飥?/p>
飥?/p>
鐨勫�兼槸
( )
A
锛?/p>
15 B
锛?/p>
30 C
锛?/p>
31 D
锛?/p>
64
2.
璁剧瓑宸暟鍒?/p>
飦?/p>
飦?/p>
n
a
鐨勫墠
n
椤瑰拰涓?/p>
n
s
锛岃嫢
3
1
6,
4
S
a
飥?/p>
飥?/p>
锛?
鍒欏叕宸?/p>
d
绛変簬
( )
A
锛?/p>
1 B
锛?
5
3
C
锛?/p>
-2 D
锛?/p>
3
3.
鍦ㄧ瓑宸暟鍒?/p>
飦?/p>
飦?/p>
n
a
涓紝鑻?/p>
6
8
6
飥?/p>
飥?/p>
a
a
锛屽垯鏁板垪
飦?/p>
飦?/p>
n
a
鐨勫墠
13
椤逛箣鍜屼负
( )
A.
39
2
B. 39 C.
117
2
D.78
4
锛庡湪鏁板垪
}
{
n
a
涓紝婊¤冻
2
1
飥?/p>
飥?/p>
飥?/p>
n
n
a
a
锛?/p>
1
1
飥?/p>
a
锛屽垯
飥?/p>
5
S
( )
A
锛?/p>
9 B
锛?/p>
11 C
锛?/p>
25 D
锛?/p>
36
5.
鍦?/p>
ABC
飦?/p>
涓紝瑙?/p>
,
,
A
B
C
鐨勫杈瑰垎鍒负
,
,
a
b
c
锛屼笖
45
,
60
,
1,
B
C
c
飥?/p>
飥?/p>
飥?/p>
鍒欐渶鐭竟鐨勮竟闀跨瓑浜?/p>
( )
A.
3
2
B.
6
2
C.
1
2
D.
6
3
6.
宸茬煡鈻?/p>
ABC
涓紝
a
锛?/p>
4
锛?/p>
b
锛?/p>
4
鈭?/p>
3
锛屸垹
A
锛?/p>
30
掳锛屽垯鈭?/p>
B
绛変簬
( )
A.30
潞
B.30
潞鎴?/p>
150
潞
C.60
潞鎴?/p>
120
潞
D.60
潞
7.
宸茬煡鍦ㄢ柍
ABC
涓紝
sinA
鈭?/p>
sinB
鈭?/p>
sinC
锛?/p>
3
鈭?/p>
5
鈭?/p>
7
锛岄偅涔堣繖涓笁瑙掑舰鐨勬渶澶ц鏄?/p>
( )
A.135
潞
B.90
潞
C.120
潞
D.150
潞