2014年GCT考试数学复习资料.docx

2014年GCT考试数学复习资料
County continuation records has examined and approved the draft, spirit, believe, comprehensiv所以 ．
3．和倍、差倍与和差问题
例：把324分为A,B,C,D四个数，如果A数加上2，B数减去2，C数乘以2，D数除以2之后得到的四个数相等，求这四个数各是多少？
分析：根据题意得
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work41
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work
解得 ．
[样题与真题]
一、数的运算
1．设直线方程 ，且的截距是的截距的倍，则与谁大？(C)
(A) (B) (C) 一样大 (D) 无法确定
分析：因为，所以。
2．方程 的根的个数为(A)
(A) (B) (C) (D)
分析：因为，所以 的根的个数为0。
3．设均为大于零的实数，且 ，则与谁大？(A)
(A)前者 (B)后者 (C)一样大 (D)无法确定
分析：因为，所以比大。
注：特殊值代入法。
4．某人左右两手分别握了若干颗石子，左手中石子数乘加上右手中石子数乘之和为，则左手中石子数为奇数，还是偶数？(A)
(A)奇数 (B)偶数 (C)无法确定 (D)无石子
分析：因为，所以为奇数。
5．（2003）已知 ，则．
A．． B．．
C．． D．．*
注：考虑。
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work5
County continuation records has examined and approved the draft, spirit, believe, comprehensive Yearbook of zhuanglang already prepared draft, entered the phase of evaluation. Civil air defense work
6．（2003）．
A．． B．． * C．． D．．
注：。
7．设，则（B ）．
A．2 B．1 C．0 D．
分析：由于，，
所以．
8．（2005）
A. B. C. D.
分析：分子，分母，所以正确选项为A．
9．（2006）（C）
A . B . C