[求助][求助]请教OG绿皮书的Data Sufficient的68题和117题！

刚做完OG绿皮书的题目，实在是有两道题目弄不明白（本人的数学一直都很差！），请各位帮忙。

Data Sufficient的第68题；题目如下：AN infinite sequence of positive integers is called an "alpha sequence" if the number of even integers in the sequence is finite. If S is an infinte sequence of positive integers, is S an alpha sequence? (1) The first ten integers in S are even. (2) An infinite number of integers in S are odd.

Data Sufficient的第117题；（题目上方有是一个三角形,说是角BDC=角BCD=2X）In triangle ABC above, what is the length of side BC? （1）line segment AD has length 6. (2) x=36

谢谢！

你好，请问你有OG绿皮书的电子版吗？