Jan 12 okay onion 2004

Jan 12 okay
onion 2004-01-15 18:39:12
6xx is not a good score, but should be okay for me. Lots of useful info from CD for sure. I think if you can finish all the RC, CR, SC questions, you are in pretty good shape. It is time to make some contributions to the others.

Math:

1. 红黑两种书在架上, 红X本, 黑Y本, 抽两本书, 没有红的可能性?

A: X:Y=1:2
B: 共多少本

Answer is C.

2. A 单独做 X 比 B 多 2 Hours, A, B together, can finish 4/5 X in Y hours, A 单独做 2X, how long?

RC:

1. Different between species decreae and extinct.
2. US economy something.

　

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