“盲目追随别人的人，追随不到什么”这句话告诉我们[ ] A．盲目地跟从他人能标新

—What were you doing when Tony phoned you?

—I had just finished my work and________ to take a shower.

A．had started

B．started

C．have started

D．was starting

12的因数：______

18的因数：______

12和18的公因数：______，最大公因数：______．

实验教育学

消化管壁由内向外依次为几层结构？

色谱峰的峰高