【答案解析】1. Realizing the difference among our culture can help us to communicate with each other more effectively. Learning our different ways of communication can enrich our cultural life. Different communication styles embody our deep-seated views of philosophy and the world. These deep-seated views of philosophy and the world is exactly our cultural foundations respectively. We will get wider visions which are shown by the world when we can understand the deep-seated philosophy. 2. The approval of every country to multi-polarization reflects the pursuit of democratization in international relations in a sense. In the times of economic globalization, a relation of deep interdependence is formed among nations. The principle of equality among nations, which was published in Charters of the United Nations, is filtering into people's mind. More and more countries have clearly realized that big or small, strong or weak, rich or poor, every nation is all equal member of the world. The democratization of international relations will be the common aspiration in establishing new order of the world. 3. Questioning is not only the necessary step of discarding the false while retaining the truth in the negative aspect, but also a basic condition in establishing new theories and inspiring new invention in the positive aspect. It is lazy of thought to admit other's word completely without thinking. This kind of people is always playing a passive role without the ability to learn thoughtfully. only the people who often question and ask others can raise questions. They want to get the answers by raising questions. There is no way for increasing knowledge except constantly asking and answering questions.