2020
骞村畨寰界渷鍒濅腑瀛︿笟姘村钩妯℃嫙鑰冭瘯
(
涓�
)
鏁板
(
鏃堕棿
:120
鍒嗛挓
婊″垎
:150
鍒?/p>
)
涓�銆侀�夋嫨棰?/p>
(
鏈ぇ棰樺叡
10
灏忛
,
姣忓皬棰?/p>
4
鍒?/p>
,
婊″垎
40
鍒?/p>
)
1
.-
2
鐨勭粷瀵瑰�兼槸
(
)
A.0
B.
-
2
C.2
D.1
绛旀
C
2
.
鎹垵姝ユ牳绠?/p>
,2018
骞翠笂鍗婂勾
,
鏌愮渷鐢熶骇鎬诲�艰揪
14 264
浜垮厓
,
鎸夊彲姣斾环鏍艰绠?/p>
,
姣斿幓骞村悓鏈熷闀?/p>
8
.
3%,
澧為�熷眳鍏ㄥ浗
绗?/p>
6
浣?/p>
.
鏁版嵁
14 264
浜跨敤绉戝璁版暟娉曡〃绀轰负
(
)
A.1
.
426 4
脳
10
12
B.1
.
426 4
脳
10
13
C.14 264
脳
10
8
D.14
.
264
脳
10
12
绛旀
A
3
.
涓嬪垪杩愮畻姝ｇ‘鐨勬槸
(
)
A.
x
3
+x
3
=x
6
B.(
-x
)
6
梅
(
-x
)
2
=x
4
C.(
a-b
)(
-a-b
)
=a
2
-b
2
D.
a
2
+
4
ab+
2
b
2
=
(
a+
2
b
)
2
绛旀
B
4
.
涓嬪垪鍑犱綍浣撲腑
,
淇鍥句负涓夎褰㈢殑鏄?/p>
(
)
绛旀
C
5
.
涓嬪垪鍥犲紡鍒嗚В涓?/p>
,
姝ｇ‘鐨勬槸
(
)
A.
x
2
y
2
-z
2
=x
2
(
y+z
)(
y-z
)
B.
-x
2
y+
4
xy=-xy
(
x+
4)
C.9
-
12
a+
4
a
2
=-
(3
-
2
a
)
2
D.(
x+
2)
2
-
9
=
(
x+
5)(
x-
1)
绛旀
D
6
.
鏌愬伐鍘?/p>
2017
骞寸殑宸ヤ笟鐢熶骇鍊间负
a
鍏?/p>
,2018
骞寸殑宸ヤ笟鐢熶骇鍊煎彈浜т笟缁撴瀯璋冩暣鐨勫奖鍝?/p>
,
宸ヤ笟鐢熶骇鍊间笅闄嶄簡
15%,2019
骞寸敱浜庝骇涓氱粨鏋勯�愭浼樺寲
,
宸ヤ笟鐢熶骇鍊间笂鍗囦簡
20%,
鍒?/p>
2019
骞磋宸ュ巶鐨勫伐涓氱敓浜у�间负
(
)
A.(1
-
15%)(1
+
20%)
a
鍏?/p>
B.(1
-
15%)20%
a
鍏?/p>
C.(1
+
15%)(1
-
20%)
a
鍏?/p>
D.(1
+
20%)15%
a
鍏?/p>
绛旀
A
7
.
鑻ュ叧浜?/p>
x
鐨勪竴鍏冧簩娆℃柟绋?/p>
kx
2
-
2
kx+
4
=
0
鏈変袱涓浉绛夌殑瀹炴暟鏍?/p>
,
鍒?/p>
k
鐨勫�间负
(
)
A.0
鎴?/p>
4
B.4
鎴?/p>
8
C.0
D.4
绛旀
D