2018-2019
骞翠節骞寸骇涓婂唽鏈熶腑娴嬭瘯棰樺甫绛旀
涓�銆侀�夋嫨棰?/p>
(
姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
30
鍒?/p>
)
涓嬪垪鍚勫皬棰樺潎鏈夊洓涓瓟妗堬紝鍏朵腑鍙湁涓�涓纭殑
.
1
.
涓嬪垪鍥惧舰涓紝鏃㈡槸杞村绉板浘褰㈠張鏄腑蹇冨绉板浘褰㈢殑鏄?/p>
(D)
2
.
宸茬煡鐐?/p>
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锛?/p>
3)
锛岄偅涔堢偣
P
鍏充簬鍘熺偣鐨勫绉扮偣鐨勫潗鏍囨槸
(B)
A.(
锛?/p>
3
锛?/p>
锛?/p>
2)
B.(
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2
锛?/p>
锛?/p>
3)
C.(2
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3)
D.(
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2
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3)
3
.
鏂圭▼
x
2
锛?/p>
3x
鐨勮В鏄?/p>
(C)
A.x
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3
B.x
锛?/p>
0
C.x
1
锛?/p>
3
锛?/p>
x
2
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0
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1
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x
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4
.
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m
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n
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0
鐨勪袱涓疄鏁版牴锛屽垯
m
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(B)
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7
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3
5
.
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2
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灏嗏柍
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O
閫嗘椂閽堟棆杞?/p>
30掳
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OA
1
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1
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A
1
鐨勫潗鏍囦负
(A)
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3
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3
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6
.
宸茬煡浜屾鍑芥暟
y
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kx
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7
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x
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k
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(D)
A.k
锛烇紞
7
4
B.k
锛烇紞
7
4
涓?/p>
k
鈮?/p>
0
C.k
鈮ワ紞
7
4
D.k
鈮ワ紞
7
4
涓?/p>
k
鈮?/p>
0
7
.
鎶婃姏鐗╃嚎
y
锛?/p>
x
2
锛?/p>
4
鍏堝悜宸﹀钩绉?/p>
1
涓崟浣嶉暱搴︼紝鍐嶅悜涓嬪钩绉?/p>
3
涓崟浣嶉暱搴︼紝寰楀埌鐨勬姏鐗╃嚎
鐨勮В鏋愬紡涓?/p>
(A)
A.y
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(x
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1)
2
锛?/p>
1
B.y
锛?/p>
(x
锛?/p>
1)
2
锛?/p>
1
C.y
锛?/p>
(x
锛?/p>
1)
2
锛?/p>
7
D.y
锛?/p>
(x
锛?/p>
1)
2
锛?/p>
7
8
.
濡傚浘锛屽湪涓�骞呴暱涓?/p>
60 cm
锛屽涓?/p>
40 cm
鐨勭煩褰㈤鏅敾鐨勫洓鍛ㄩ暥涓�鏉＄浉鍚屽搴︾殑绾歌竟锛屽埗鎴?/p>
涓�骞呯煩褰㈡寕鍥?/p>
.
鑻ヨ浣挎暣涓寕鍥剧殑闈㈢Н鏄?/p>
3 500 cm
2
锛?/p>
璁剧焊杈圭殑瀹戒负
x cm
锛屽垯
x
婊¤冻鐨勬柟绋嬫槸
(B)
A.(60
锛?/p>
x)(40
锛?/p>
x)
锛?/p>
3
500
B.(60
锛?/p>
2x)(40
锛?/p>
2x)
锛?/p>
3 500
C.(60
锛?/p>
x)(40
锛?/p>
x)
锛?/p>
3
500
D.(60
锛?/p>
2x)(40
锛?/p>
2x)
锛?