Answer:
Yes.
Explanation:
Yes, I encountered something in the history classes that make me confused so much that I can't able to solve it. That confusion make me so stressful that I stuck in that problem and can't do anything further. That confusion is responsible for the wasting my valuable time. Sometimes history classes give a great stress to an individual which leads to wasting time.
Printing allowed literature to become more available during the Tang Dynasty
<span>It is to defend the collective security of member states. Your very welcome on this!</span>