閮ㄥ垎瀛︽牎涔濆勾绾у崄鏈堣仈鑰冩暟瀛﹁瘯鍗?/p>
涓�銆侀�夋嫨棰橈紙姣忛
3
鍒嗭紝鍏?/p>
30
鍒嗭級
1.
涓�鍏冧簩娆℃柟绋?/p>
x
2
=2
x
鐨勬牴涓猴紙
锛?/p>
A.
x
1
=0,
x
2
=2
B.
x
=卤
2
C.
x
=0
D.
x
=2
2.
涓嬪垪鐢佃鍙扮殑鍙版爣锛屾槸涓績瀵圭О鍥惧舰鐨勬槸锛?/p>
锛?/p>
A.
B
C.
D.
3.
璁炬柟绋?/p>
x
2
锛?/p>
3
x
锛?/p>
1=0
鐨勪袱鏍瑰垎鍒负
x
1
,
x
2
,
鍒?/p>
x
1
+
x
2
=(
)
A.
锛?/p>
3
B.3
C.
锛?/p>
1
D.1
4.
濡傚浘鏄簩娆″嚱鏁?/p>
y
=
ax
2
+
bx
+
c
鐨勯儴鍒嗗浘璞★紝鐢卞浘璞″彲鐭?/p>
涓嶇瓑寮?/p>
ax
2
+
bx
+
c
锛?/p>
0
鐨勮В闆嗘槸锛?/p>
锛?/p>
A.
锛?/p>
1
锛?/p>
x
锛?/p>
5
B.
x
锛?/p>
5
C.
x
锛滐紞
1
涓?/p>
x
锛?/p>
5
D.
C
.
x
锛滐紞
1
鎴?/p>
x
锛?/p>
5
5.
濡傚浘锛?/p>
P
A
銆?/p>
PB
鏄姍
O
鐨勪袱鏉″垏绾匡紝
A
銆?/p>
B
涓哄垏鐐癸紝
AC
涓衡姍
O
鐨勭洿寰勶紝鈭?/p>
P
=70掳
锛屽垯鈭?/p>
PBC
=
锛?/p>
锛?/p>
A.110掳
B.120潞
C.135掳
D.145掳
6.
鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓紝灏嗘姏鐗╃嚎
y
=2
x
2
鍚戜笂骞崇Щ
2
涓崟浣?/p>
,
鎵�寰楀浘璞＄殑瑙ｆ瀽寮忎负锛?/p>
锛?/p>
A.
y
=2
x
2
锛?/p>
2
B.
y
= 2
x
2
+2
C.
y
= 2(
x
锛?/p>
2)
2
D.
y
= 2(
x
+2)
2
7.
鏌?/p>
鍝?/p>
鐗?/p>
鐢?/p>
鑴?/p>
2009
骞?/p>
鐨?/p>
閿�
鍞?/p>
鍗?/p>
浠?/p>
涓?/p>
7200
鍏?/p>
锛岀敱
浜?/p>
绉?/p>
鎶�
杩?/p>
姝?/p>
鍜?/p>
鏂?/p>
鍨?/p>
鐢?/p>
瀛?/p>
鍘?/p>
鏉?/p>
鏂?/p>
鐨?/p>
寮�
鍙?/p>
杩?/p>
鐢?/p>
锛?/p>
璇?/p>
鍝?/p>
鐗?/p>
鐢?/p>
鑴?/p>
鎴?/p>
鏈?/p>
涓?/p>
鏂?/p>
涓?/p>
闄?/p>
锛?/p>
閿�
鍞?/p>
鍗?/p>
浠?/p>
涔?/p>
閫?/p>
骞?/p>
涓?/p>
闄?/p>
锛?/p>
鑷?/p>
2011
骞?/p>
璇?/p>
鍝?/p>
鐗?/p>
鐢?/p>
鑴?/p>
鐨?/p>
閿�
鍞?/p>
鍗?/p>
浠?/p>
涓?/p>
4900
鍏?/p>
锛?/p>
璁?/p>
2009
骞?/p>
鑷?/p>
2010
骞?/p>
锛?/p>
2010
骞?/p>
鑷?/p>
2011
骞?/p>
杩?/p>
涓?/p>
骞?/p>
璇?/p>
鍝?/p>
鐗?/p>
鐢?/p>
鑴?/p>
鐨?/p>
閿�
鍞?/p>
鍗?/p>
浠?/p>
骞?/p>
骞?/p>
鍧?/p>
闄?/p>
浣?/p>
鐜?/p>
鍧?/p>
涓?/p>
x
锛?/p>
鍒?/p>
鍙?/p>
鍒?/p>
鍑?/p>
鐨?/p>
姝?/p>
纭?/p>
鐨?/p>
鏂?/p>
绋?/p>
涓?/p>
(
)
A
锛?/p>
4900
锛?/p>
1+
x
锛?/p>
2
=7200
B
锛?/p>
7200
锛?/p>
1
锛?/p>
2
x
锛?/p>
=4900
C
锛?/p>
7200
锛?/p>
1
锛?/p>
x
锛?/p>
=4900
锛?/p>
1+
x
锛?/p>
D
锛?/p>
7200
锛?/p>
1
锛?/p>
x
锛?/p>
2
=4900
8.
濡?/p>
鍥?/p>
锛?/p>
鐐?/p>
A
1
銆?/p>
A
2
銆?/p>
A
3
銆?/p>
鈥?/p>
銆?/p>
A
n
鍦?/p>
鎶?/p>
鐗?/p>
绾?/p>
y
=
x
2
鍥?/p>
璞?/p>
涓?/p>
锛?/p>
鐐?/p>
B
1
銆?/p>
B
2
銆?/p>
B
3
銆?/p>
鈥?/p>
銆?/p>
B
n
鍦?/p>
y
杞?/p>
涓?/p>
锛?/p>
鑻?/p>
鈻?/p>
A
1
B
0
B
1
銆?/p>
鈻?/p>
A
2
B
1
B
2
銆?/p>
鈥?/p>
銆?/p>
鈻?/p>
A
n
B
n
锛?/p>
1
B
n
閮?/p>
涓?/p>
绛?/p>
鑵?/p>
鐩?/p>
瑙?/p>
涓?/p>
瑙?/p>
褰?/p>
锛?/p>
鐐?
x
5
2
0
y
B
C
O
A
P