读图回答问题: | ||
| ||
(1)说出图1、图2发明的名称及发明者。 ____________________________________________________________________________________________ (2)图1中的发明使人类进入什么时代? ____________________________________________________________________________________________ (3)图1与图2两者有什么关系? ____________________________________________________________________________________________ (4)这两项发明均是哪一事件的成果? ____________________________________________________________________________________________ (5)通过上图,你从中得出了什么启示? ____________________________________________________________________________________________ |