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2020骞村収(n猫i)钂欏彜鍏嫏(w霉)鍝¤€冭│琛屾脯(c猫)鏁�(sh霉)閲忛棞(gu膩n)绯荤反缈�(x铆)椤岋細
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A.7
B.8
C.9
D.10
2.鏌愬湴灞呮皯鐢ㄦ按鍍�(ji脿)鏍煎垎浜岀礆(j铆)闅庢锛屾埗骞寸敤姘撮噺鍦�0~180(鍚�)鍣哥殑姘村児(ji脿)5鍏�/鍣�;180鍣镐互涓婄殑姘村児(ji脿)7鍏�/鍣搞€傛埗鍏�(n猫i)浜哄彛鍦�5浜轰互涓婄殑锛屾瘡澶�1浜�锛岄殠姊按閲忔(bi膩o)婧�(zh菙n)澧炲姞30鍣�銆傝€佸嫉瀹�5浜�锛岃€佹潕瀹�6浜�锛屽幓骞寸敤姘撮噺閮芥槸210鍣搞€傚晱鑰佹潕瀹跺緱鍟忎汉鍧囨按璨�(f猫i)姣旇€佸嫉瀹跺皯绱勫灏戝厓( )
A.12
B.35
C.47
D.60
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A.4
B.3
C.2
D.1
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3.銆愯В鏋愩€慉銆傝ō(sh猫)B宸ョ▼闅�(du矛)鐨勬晥鐜囩偤1锛孉宸ョ▼闅�(du矛)鐨勬晥鐜囩偤2锛屽墖绺藉伐浣滈噺鐐�(1+2)×6=18銆傛寜鍘熶締鐨勬檪(sh铆)闁撳畬鎴愶紝B闅�(du矛)瀹屾垚浜�1×2×(6-1)=10锛屽墖A宸ョ▼闅�(du矛)闇€瑕佸伐浣�(18-10)÷(2×2)=2澶╋紝鎵€姹傜偤6-2=4澶�銆侫闋�(xi脿ng)鐣�(d膩ng)閬搞€�
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