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1
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锛堢鍦哄睘浜庝富鍔紝绾挎灞炰簬浠庡姩锛?
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2
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V
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3
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1
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b
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B
1
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B
2
锛屼笖
B
1
=
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2
=
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锛屾瘡涓鍦?/p>
鐨勯暱閮芥槸
a
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v
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a
瀹戒负
b
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MNQP
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鐨勬�荤數闃讳负
R
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f
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锛?/p>
1
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锛?/p>
2
锛夊垪杞﹁兘杈惧埌鐨勬渶澶ч�熷害锛?/p>
锛?/p>
3
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瑙ｆ瀽
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1
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m
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2
锛?/p>
鍒嗘瀽鍒楄溅鍙楀姏鍙緱锛?/p>
m
f
F
a
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飥?
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瀹夊煿鍔涘彉灏忥紝
鍔犻�熷害鍙樺皬锛?/p>
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a=0
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f
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锛?/p>
3
锛夊垏鏂數婧愩�佸澶ч樆鍔?/p>
渚?/p>
2
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涓嶉�傜敤浜嗐�?/p>
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杩欎簺閽㈢储浼氱敱浜庢壙鍙椾笉浜嗚嚜韬?/p>
鐨勯噸閲忥紝
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涓烘锛?/p>
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杞ㄩ亾
闂存湁鍨傜洿杞ㄩ亾骞抽潰鐨勫寑寮虹鍦?/p>
B
1
鍜?/p>
B
2
锛屼笖
B
1
鍜?/p>
B
2
鐨勬柟鍚戠浉鍙嶏紝澶у皬鐩哥瓑锛屽嵆
B
1
=
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2
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锛?/p>
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abcd
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5脳10
3
kg
锛屾墍鍙?
a
b
b
a
M
v
N
P
Q
1
B
2
B