简答题 what was the total changes of industrial revolution

简答题 what was the change of mechanization before and after industrial revolution

简答题 what was the industrial revolution?

填空题 in 18th century, merchants were willing to invest more in ( ),( )and( )

填空题 the industrial revolution first started in( ),and later spread to continental( ) and ( )        

简答题 what was the industrial revolution impact

填空题 since the 15th century,many european nations started to build colonies in( ),( )and ( ).

简答题 what was the industrial revolution started from