In an impromptu speech, the speaker should respond appropriately to the audience, the topic, and the time constraints.
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基本RS触发器只能由与非门电路组成,用或非门是不能实现的()。
刑事法律关系,用于解决有关部门依法行政、依法管理网络的问题()
Read and copy the Internet and professional publications to learn about the latest developments in the area you will discuss.