鍏ㄥ浗涓�冧俊鎭祫婧愰棬鎴风綉绔?/p>
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鍏ㄥ浗涓�冪綉
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鐗堟潈鎵�鏈?/p>
璋㈢粷杞浇
姝ｆ柟褰?/p>
1
銆?/p>
锛?013鈥㈡槅鏄庯級濡傚浘锛屽湪姝ｆ柟褰?/p>
ABCD
涓紝鐐?/p>
P
鏄?/p>
AB
涓婁竴鍔ㄧ偣锛堜笉涓?/p>
A
锛?/p>
B
閲嶅悎锛?/p>
锛屽瑙掔嚎
AC
锛?/p>
BD
鐩镐氦浜庣偣
O
锛岃繃鐐?/p>
P
鍒嗗埆浣?/p>
AC
锛?/p>
BD
鐨勫瀭绾匡紝鍒嗗埆浜?/p>
AC
锛?/p>
BD
浜庣偣
E
锛?/p>
F
锛屼氦
AD
锛?/p>
BC
浜?/p>
鐐?/p>
M
锛?/p>
N
锛庝笅鍒楃粨璁猴細
鈶犫柍APE鈮屸柍AME锛涒憽PM+PN=AC锛涒憿PE
2
+PF
2
=PO
2
锛涒懀鈻砅OF鈭解柍BNF锛涒懁褰撯柍PMN鈭解柍AMP
鏃讹紝鐐?/p>
P
鏄?/p>
AB
鐨勪腑鐐癸紟
鍏朵腑姝ｇ‘鐨勭粨璁烘湁锛?/p>
锛?/p>
A
锛?/p>
5
涓?/p>
B
锛?/p>
4
涓?/p>
C
锛?/p>
3
涓?/p>
D
锛?/p>
2
涓?/p>
鑰冪偣
锛?/p>
鐩?/p>
浼间笁瑙掑舰鐨勫垽瀹氫笌鎬ц川锛涘叏绛変笁瑙掑舰鐨勫垽瀹氫笌鎬ц川锛涘嬀鑲″畾鐞嗭紱姝ｆ柟褰㈢殑鎬ц川
鍒嗘瀽锛?/p>
渚?/p>
鎹鏂瑰舰鐨勬�ц川浠ュ強鍕捐偂瀹氱悊銆?/p>
鐭╁舰鐨勫垽瀹氭柟娉曞嵆鍙垽鏂柍APM
鍜屸柍BPN
浠ュ強鈻矨PE銆?
鈻矪PF
閮芥槸绛夎叞鐩磋涓夎褰紝鍥涜竟褰?/p>
PEOF
鏄煩褰紝浠庤�屼綔鍑哄垽鏂紟
瑙ｇ瓟锛?/p>
瑙?/p>
锛氣埖鍥涜竟褰?/p>
ABCD
鏄鏂瑰舰锛?/p>
鈭粹垹BAC=鈭燚AC=45掳锛?/p>
鈭靛湪鈻矨PE
鍜屸柍AME
涓紝
锛?/p>
鈭粹柍APE鈮屸柍AME锛屾晠鈶犳纭紱
鈭碢E=EM=
PM
锛?/p>
鍚岀悊锛?/p>
FP=FN=
NP
锛?/p>
鈭垫鏂瑰舰
ABCD
涓?/p>
AC鈯D锛?/p>
鍙堚埖PE鈯C锛孭F鈯D锛?/p>
鈭粹垹PEO=鈭燛OF=鈭燩FO=90掳锛屼笖鈻矨PE
涓?/p>
AE=PE
鈭村洓杈瑰舰
PEOF
鏄煩褰紟
鈭碢F=OE锛?/p>
鈭碢E+PF=OA锛?/p>
鍙堚埖PE=EM=
PM
锛?/p>
FP=FN=
NP
锛?/p>
OA=
AC
锛?/p>
鈭碢M+PN=AC锛屾晠鈶℃纭紱
鈭靛洓杈瑰舰
PEOF
鏄煩褰紝
鈭碢E=OF锛?/p>
鍦ㄧ洿瑙掆柍OPF
涓紝
OF
2
+PF
2
=PO
2
锛?/p>
鈭碢E
2
+PF
2
=PO
2
锛屾晠鈶㈡纭紟