- 1 -
2019
骞村北涓滅渷娴庡崡甯傚巻涓嬪尯涓�冩暟瀛︿笁妯¤瘯鍗?/p>
涓�銆侀�夋嫨棰橈紙鏈ぇ棰樺叡
12
灏忛锛屾瘡灏忛
4
鍒嗭紝婊″垎
48
鍒?/p>
鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝鍙?/p>
鏈変竴椤规槸绗﹀悎棰樼洰瑕佹眰鐨勶級
1
锛庯紙
4
鍒嗭級鍦ㄥ疄鏁?/p>
0
锛?/p>
2
锛?/p>
5
锛?/p>
3
涓紝鏈�澶х殑鏄?/p>
(
)
A
锛?/p>
0
B
锛?/p>
2
C
锛?/p>
5
D
锛?/p>
3
2
锛庯紙
4
鍒嗭級涓嬮潰绌哄績鍦嗘煴褰㈢墿浣撶殑宸﹁鍥炬槸
(
)
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
3
锛庯紙
4
鍒嗭級
2.5
PM
鏄寚澶ф皵涓洿寰勫皬浜庢垨绛変簬
2.5
(1
0.000001
)
m
m
m
飦?/p>
飦?/p>
飥?/p>
鐨勯绮掔墿锛屼篃绉颁负
鍙叆鑲洪绮掔墿锛屽畠浠惈鏈夊ぇ閲忕殑鏈夋瘨銆佹湁瀹崇墿璐紝瀵逛汉浣撳仴搴峰拰澶ф皵鐜璐ㄩ噺鏈夊緢澶у嵄
瀹筹紟
2.5
m
飦?/p>
鐢ㄧ瀛﹁鏁版硶鍙〃绀轰负
(
)
A
锛?/p>
5
2.5
10
m
飥?/p>
飩?/p>
B
锛?/p>
7
0.25
10
m
飥?/p>
飩?/p>
C
锛?/p>
6
2.5
10
m
飥?/p>
飩?/p>
D
锛?/p>
5
25
10
m
飥?/p>
飩?/p>
4
锛庯紙
4
鍒嗭級鐩磋涓夎鏉垮拰鐩村昂濡傚浘鏀剧疆锛岃嫢
1
20
飪?/p>
飥?/p>
飩?/p>
锛屽垯
2
飪?/p>
鐨勫害鏁颁负
(
)
A
锛?/p>
60
飩?/p>
B
锛?/p>
50
飩?/p>
C
锛?/p>
40
飩?/p>
D
锛?/p>
30
飩?/p>
5
锛庯紙
4
鍒嗭級涓嬪垪璁＄畻姝ｇ‘鐨勬槸
(
)
A
锛?/p>
4
2
2
a
b
a
b
a
b
飥?/p>
飩?/p>
飥?/p>
飥?/p>
B
锛?/p>
2
2
2
(
)
a
b
a
b
飥?/p>
飥?/p>
飥?/p>
C
锛?/p>
2
3
6
a
a
a
飥?/p>
D
锛?/p>
2
2
2
3
2
a
a
a
飥?/p>
飥?/p>
飥?/p>
飥?/p>
6
锛?/p>
锛?/p>
4
鍒嗭級濡傚浘锛屽洓杈瑰舰
ABCD
涓庡洓杈瑰舰
EFGH
浣嶄技锛屽叾浣嶄技涓績涓虹偣
O
锛屼笖
4
3
OE
EA
飥?/p>
锛屽垯
(
FG
BC
飥?/p>
)
