第二次工业革命比第一次工业革命更快地推动了生产力的发展的根本原因是（    ）

根据短文，判断正误。

   Look at this desk. It's Jim's desk. It's brown. Jim's book is on it. It's an English book. His pencil-box is on it, too. His pencil is in his pencil-box. But where's his pen? He can't find it.

下列属于生命现象的是