宋代诗人陆游在一首诗中说;“纸上得来终觉浅,绝知此事要躬行这是强调( )
6.马克思主义普遍原理与各国实际相结合的哲学基础是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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