摩托车厂现在开设大批专卖店销售自己的摩托车,这种业务战略属于前向一体化战略。
参考答案:错
在机械制图中,采用()的制图方法,称为三视图。
----Recent years have _______ rapid changes of my hometown.
----Yes, I could hardly recognize it when I arrived yesterday.
A.watched
B.contributed
C.made
D.witnessed