2010年皖南八校联考英语数学化学答案
一点通教学网上找不到,急用,谢谢
推荐回答(2个)
只能给你选择体的了,因为本人比较菜鸟,有很多的符号打不出来……)
英语
AABBB BBCBA CCBBC CABBC
CCBBC DABAB ABBDC
BDACB DACBD ADCBD AADCB
CDCBC DBCBA BADBB ADCCB
habits various medium tastes serve coke polite crowded longer difference
化学
DACDB ADBDC BDCC
数学
CDBBB CCDBD
11:50
12:y=-2x+6
13: 3
14: 30度
15:(2)(3)(4 )
16:A=2π/3,T=π,递增区间为〔π/12+kπ,7π/12+kπ]
17:(1)8/15 (2)8/3
18:(1)用向量证明向量OB平行于平面PMN的法向量(1,1,1)即可 (2)(√2)/3
19:(1)略 (2)前6n+2项的和为24n+3
20:(1)(X^2)/4+(Y^2)/3=1("^"是平方的意思)
(2)PQ会和圆O相切,证明略
21:(1)P=Q(2)P的取值范围为(-8,0)(3)P的取值范围为(-e-1,+∞)
英语AABBA BBCBA BCCBB CABBC CCABC DABBB
BBBDC ADACB DACBD ACCBB AADCA CDCBC
DBDBA BADBB ADCCB
cultures various introducing
tastes serve coke different
crowded long difference
这个事别人答案
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