______ Gina Tara are studying Chinese history and culture now. They find them rich and amazing.
A:Both; and
B:Not only; but also
C:Either; or
D:Neither; nor
下图示意某发达国家地区简图。回答下列各题。
将某哺乳动物的两种细胞置于一定浓度的Q溶液中,测定不同情况下吸收Q的速率,结果如下表所示:
由表中数据能得出的结论是( )
函数f(x)=log3(x2﹣2x﹣3)的单调增区间为____