- 1 -
2019
灞婂叏鍥介珮涓夊師鍒涜瘯鍗凤紙涓�锛?/p>
鏁板璇曞嵎锛堢悊绉戯級
鏈瘯棰樺嵎鍏?/p>
6
椤碉紝
23
棰橈紙鍚�夎�冮锛?/p>
銆傚叏鍗锋弧鍒?/p>
150
鍒嗐�傝�冭瘯鐢ㄦ椂
120
鍒嗛挓銆?/p>
鈽呯鑰冭瘯椤哄埄鈽?/p>
娉ㄦ剰浜嬮」锛?/p>
1
銆佺瓟棰樺墠锛屽厛灏嗚嚜宸辩殑濮撳悕銆佸噯鑰冭瘉鍙峰～鍐欏湪璇曢鍗峰拰绛旈鍗′笂锛屽苟灏嗗噯鑰冭瘉鍙锋潯褰㈢爜
绮樿创鍦ㄧ瓟棰樺崱涓婄殑鎸囧畾浣嶇疆銆傜敤
2B
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A
鍚庣殑鏂规娑傞粦銆?/p>
2
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2B
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3
銆?/p>
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4
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2B
閾呯瑪娑傞粦銆傜瓟妗堝啓
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5
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涓�銆侀�夋嫨棰橈紙鍏?/p>
12
灏忛锛屾瘡灏忛
5
鍒嗭紝婊″垎
60
鍒嗭級
1.
璁鹃泦鍚?/p>
A={x
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Z|
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x
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4
锛?/p>
锛?/p>
x+1
锛夛紲
0}
锛?/p>
B={2
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3
锛?/p>
4}
锛屽垯
A
鈭?/p>
B=
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锛?/p>
A.
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2
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4
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銆愮瓟妗堛�?/p>
D
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D.
2.
鑻?/p>
x
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y
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x+y=2
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锛?/p>
A. x
2
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y
2
B.
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2
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1 D. y
2
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1
銆愮瓟妗堛�?/p>
C
銆愯В鏋愩�戝洜涓?
锛屼笖
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锛涙晠閫?/p>
C.
3.
宸茬煡鍚戦噺
=
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x
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1
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2
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=
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x
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1
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锛屼笖
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锛屽垯
=
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锛?/p>
A.
B. 2 C. 2
D. 3