9.16几只新狗

weilaki · 发表于 2015-9-18 00:29:49

数学：
1. 404t变体。
（a/2b）指数（a2+ab+3）=？
(1)a<0
(2)b=a绝对值
构筑选C
2. 387变体求直径。
3. x-4 + 1/x-2 +1 =?
(1)忘了
(2)x-2=具体数
选B

语法：
1.each of whom/which
2.Research ......, a varity of fire or fires, confirm or confirms.......
3.主语+V +O , such as a,b and c, and +V
4.As Charles Darwin observed, natural selection operates whenever individuals of one genetic composition are better at reproducing than that of others.

A. that of others
B. the other
C. another
D. those of another
E. that of the next[size=14.0070018768311px]我选错了，既不是B也不是C，应该选D。

rowena234 · 发表于 2015-9-18 09:36:30

谢楼主！！但请问404变体后为什么是C 呢》我觉得b=a 两个条件也不能充分。

weilaki · 发表于 2015-9-18 23:20:15

由C求出，b=-a, 能够求出a/2b，指数a2+ab+3=a2-a2+3=3

[原始] 9.16几只新狗

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