濡傚浣犳湁甯姪锛岃璐拱涓嬭浇鎵撹祻锛岃阿璋紒
2018
鏂颁汉鏁欑増鍏勾绾ф暟瀛︿笂鏈熸湯娴嬭瘯棰?/p>
涓�锛庨�夋嫨棰橈紙鍏?/p>
12
灏忛锛屾弧鍒?/p>
36
鍒嗭紝姣忓皬棰?/p>
3
鍒嗭級
1
锛庝互涓嬫案娲佺幆淇濄�佺豢鑹查鍝併�佽妭鑳姐�佺豢鑹茬幆淇濆洓涓爣蹇椾腑锛屾槸杞村绉板浘褰㈡槸锛?/p>
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
2
锛庣帇甯堝倕鐢?/p>
4
鏍规湪鏉￠拤鎴愪竴涓洓杈瑰舰鏈ㄦ灦锛屽鍥撅紟瑕佷娇杩欎釜鏈ㄦ灦涓嶅彉褰紝浠栬嚦灏戣繕瑕佸啀閽変笂鍑犳牴鏈ㄦ潯锛燂紙
锛?/p>
A
锛?/p>
0
鏍?/p>
B
锛?/p>
1
鏍?/p>
C
锛?/p>
2
鏍?/p>
D
锛?/p>
3
鏍?/p>
3
锛庡涓嬪浘锛屽凡鐭?/p>
鈻?/p>
ABE
鈮屸柍
ACD
锛屸垹
1=
鈭?/p>
2
锛屸垹
B=
鈭?/p>
C
锛屼笉姝ｇ‘鐨勭瓑寮忔槸锛?/p>
锛?/p>
A
锛?/p>
AB=AC
B
锛?/p>
鈭?/p>
BAE=
鈭?/p>
CAD
C
锛?/p>
BE=DC
D
AD
锛?/p>
DE
4
锛庡鍥撅紝涓�涓瓑杈逛笁瑙掑舰绾哥墖锛屽壀鍘讳竴涓鍚庡緱鍒颁竴涓洓杈瑰舰锛屽垯鍥句腑鈭?/p>
伪
+
鈭?/p>
尾
鐨勫害鏁版槸锛?/p>
锛?/p>
A
锛?/p>
180
掳
B
锛?/p>
220
掳
C
锛?/p>
240
掳
D
锛?/p>
300
掳
5
锛庝笅鍒楄绠楁纭殑鏄紙
锛?/p>
A
锛?/p>
2
a+3b=5ab
B
锛?/p>
锛?/p>
x+2
锛?/p>
2
=x
2
+4
C
锛?/p>
锛?/p>
ab
3
锛?/p>
2
=ab
6
D
锛?/p>
锛?/p>
锕?/p>
1
锛?/p>
0
=1
6
锛庡鍥撅紝缁欏嚭浜嗘鏂瑰舰
ABCD
鐨勯潰绉殑鍥涗釜琛ㄨ揪寮忥紝鍏朵腑閿欒鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
锛?/p>
x+a
锛?/p>
锛?/p>
x+a
锛?/p>
B
锛?/p>
x
2
+a
2
+2ax
C
锛?/p>
锛?/p>
x
锕?/p>
a
锛?/p>
锛?/p>
x
锕?/p>
a
锛?/p>
D
锛?/p>
锛?/p>
x+a
锛?/p>
a+
锛?/p>
x+a
锛?/p>
x
7
锛?/p>
锛?/p>
3
鍒嗭級涓嬪垪寮忓瓙鍙樺舰鏄洜寮忓垎瑙ｇ殑鏄紙
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A
锛?/p>
x
2
锕?/p>
5x+6=
x
锛?/p>
x
锕?/p>
5
锛?/p>
+6
B
锛?/p>
x
2
锕?/p>
5x+6=
锛?/p>
x
锕?/p>
2
锛?/p>
锛?/p>
x
锕?/p>
3
锛?/p>
C
锛?/p>
锛?/p>
x
锕?/p>
2
锛?/p>
锛?/p>
x
锕?/p>
3
锛?/p>
=x
2
锕?/p>
5x+6
D
锛?/p>
x
2
锕?/p>
5x+6=
锛?/p>
x+2
锛?/p>
锛?/p>
x+3
锛?/p>
8
锛庤嫢鍒嗗紡
鏈夋剰涔夛紝鍒?/p>
a
鐨勫彇鍊艰寖鍥存槸锛?/p>
锛?/p>
A
锛?/p>
a
=0
B
锛?/p>
a
=1
C
锛?/p>
a
鈮?/p>
锕?/p>
1
D
锛?/p>
a
鈮?/p>
0
9
锛庡寲绠�
鐨勭粨鏋滄槸锛?/p>
锛?/p>
A
锛?/p>
x
+1
B
锛?/p>
x
锕?/p>
1
C
锛?/p>
锕?/p>
x
D
锛?/p>
x
10
锛庝笅鍒楀悇寮忥細
鈶?/p>
a
0
=1
锛?/p>
鈶?/p>
a
2
鈥?/p>
a
3
=a
5
锛?/p>
鈶?/p>
2
锕?
2
=
锕?/p>
锛?/p>
鈶?/p>
锕ｏ紙
3
锕?/p>
5
锛?/p>
+
锛堬梗
2
锛?/p>
4
梅
8
脳
锛堬梗
1
锛?/p>
=0
锛?/p>
鈶?/p>
x
2
+x
2
=2x
2
锛屽叾涓纭殑
鏄紙
锛?/p>
A
锛?/p>
鈶?/p>
鈶♀憿
B
锛?/p>
鈶?/p>
鈶⑩懁
C
锛?/p>
鈶?/p>
鈶⑩懀
D
锛?/p>
鈶?/p>
鈶ｂ懁
11
锛?/p>
闅忕潃鐢熸椿姘村钩鐨勬彁楂橈紝
灏忔灄瀹惰喘缃簡绉佸杞︼紝
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15
鍒嗛挓锛?/p>
鐜板凡鐭ュ皬鏋楀璺濆鏍?/p>
8
鍗冪背锛?/p>
涔樼瀹惰溅骞冲潎閫熷害鏄箻鍏氦杞﹀钩鍧囬�熷害鐨?/p>
2.5
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鑻ヨ涔樺叕浜よ溅骞冲潎姣忓皬鏃惰蛋
x
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鏍规嵁
棰樻剰鍙垪鏂圭▼涓猴紙
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A
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B
锛?/p>
C
锛?/p>
D
锛?/p>
12
锛庡鍥撅紝宸茬煡鈭?/p>
1=
鈭?/p>
2
锛岃寰楀埌
鈻?/p>
ABD
鈮屸柍
ACD
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A
锛?/p>
AB=AC
B
锛?/p>
DB=DC
C
锛?/p>
鈭?/p>
ADB=
鈭?/p>
ADC
D
锛?/p>
鈭?/p>
B=
鈭?/p>
C
浜岋紟濉┖棰橈紙鍏?/p>
5
灏忛锛屾弧鍒?/p>
20
鍒嗭紝姣忓皬棰?/p>
4
鍒嗭級
13
锛?/p>
锛?/p>
4
鍒嗭級鍒嗚В鍥犲紡锛?/p>
x
3
锕?/p>
4x
2
锕?/p>
12x=
_________
锛?/p>
14
锛?/p>
锛?/p>
4
鍒嗭級鑻ュ垎寮忔柟绋嬶細
鏈夊鏍癸紝鍒?/p>
k=
_________
锛?/p>
15
锛?/p>
锛?/p>
4
鍒嗭級濡傚浘鎵�绀猴紝宸茬煡鐐?/p>
A
銆?/p>
D
銆?/p>
B
銆?/p>
F
鍦ㄤ竴鏉＄洿绾夸笂锛?/p>
AC=EF
锛?/p>
AD=FB
锛岃浣?/p>
鈻?/p>
ABC
鈮屸柍
FDE
锛岃繕闇�娣诲姞涓�涓潯
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_________
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锛堝彧闇�濉竴涓嵆鍙級
16
锛?/p>
锛?/p>
4
鍒嗭級濡傚浘锛屽湪
鈻?/p>
ABC
涓紝
AC=BC
锛?/p>
鈻?/p>
ABC
鐨勫瑙掆垹
ACE=100
掳
锛屽垯鈭?/p>
A=
_______
搴︼紟
17
锛?/p>
锛?/p>
4
鍒嗭級濡傚浘锛岃竟闀夸负
m+4
鐨勬鏂瑰舰绾哥墖鍓?/p>
鍑轰竴涓竟闀夸负
m
鐨勬鏂瑰舰涔嬪悗锛屽墿
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涓?/p>
4
锛?/p>
鍒欏彟涓�杈归暱涓?/p>
_________
锛?/p>
涓夛紟瑙ｇ瓟棰橈紙鍏?/p>
7
灏忛锛屾弧鍒?/p>
64
鍒嗭級