2019
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涓嶇瓑寮?/p>
(
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)
鍙婂叾搴旂敤
涓撻澶嶄範璁粌棰?/p>
1
锛庝笉绛夊紡缁?/p>
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
x>1
锛?
x
鈮?/p>
2
鐨勮В闆嗗湪鏁拌酱涓婅〃绀轰负
( )
2
锛庝笉绛夊紡缁?/p>
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
x
锛?/p>
2
锛?/p>
0
锛?
x
锛?鈮?
鐨勮В闆嗗湪鏁拌酱涓婅〃绀烘纭殑鏄?/p>
( )
3.
鑻?/p>
a
锛?/p>
b
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( )
A
锛庯紞
a
锛烇紞
b B
锛庯紞
a
锛?/p>
1
锛?/p>
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1 C.
1
a
锛?/p>
1
b
D
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锛?/p>
bc
4
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锛?/p>
m
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m
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( )
5
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3(x
锛?/p>
1)
鈮?/p>
5
锛?/p>
x
鐨勯潪璐熸暣鏁拌В鏈?/p>
( )
A
锛?/p>
1
涓?/p>
B
锛?/p>
2
涓?/p>
C
锛?/p>
3
涓?/p>
D
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4
涓?/p>
6
锛庤嫢涓嶇瓑寮?/p>
ax
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2
锛?/p>
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x
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2
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y
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ay
锛?/p>
2
锛?/p>
0
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( )
A
锛?/p>
y
锛濓紞
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锛?/p>
y
锛?/p>
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锛?/p>
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锛濓紞
2 D
锛?/p>
y
锛?/p>
2
7
锛?/p>
鈥滀竴鏂规湁闅撅紝鍏柟鏀彺鈥?/p>
锛岄泤瀹夎姦灞?/p>
4
路
20
鍦伴渿鍚庯紝鏌愬崟浣嶄负涓�涓鎹愯禒浜嗕竴鎵规柊妗屾锛屽鏍＄粍缁囦竷骞?/p>
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200
鍚嶅鐢熸惉妗屾锛?/p>
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(
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)
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( )
A
锛?/p>
60 B
锛?/p>
70 C
锛?/p>
80 D
锛?/p>
90
8.
宸茬煡涓嶇瓑寮忕粍
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
x>a
锛?
x
鈮?/p>
1
鐨勮В闆嗘槸
x鈮?锛屽垯
a
鐨勫彇鍊艰寖鍥存槸
( )
A
锛?/p>
a<1 B
锛?/p>
a
鈮?/p>
1 C
锛?/p>
a
鈮?/p>
1 D
锛?/p>
a>1
9.
涓嬪垪鏁板�间腑涓嶆槸涓嶇瓑寮?/p>
5x鈮?x锛?/p>
9
鐨勮В鐨勬槸
( )
A
锛?/p>
5
B
锛?/p>
4
C
锛?/p>
3
D
锛?/p>
2
10.
涓嶇瓑寮忕粍
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
2x
锛?鈮?锛?
x
锛?/p>
2>1
鐨勮В闆嗕负
( )
A
锛庯紞
1<x<2 B
锛?/p>
1<x
鈮?/p>
2 C
锛庯紞1<x鈮?
D
锛庯紞1<x鈮?