A:比较8与2的线粒体DNA序列
B:比较8与3的线粒体DNA序列
C:比较8与5的Y染色体DNA序列
D:比较8与2的X染色体DNA序列
Our life in the future will get ____.
—This history book is of great value.
—Exactly. _____ can be enjoyed from it ______ you have a deep understanding of it, however.