___theory must be closely connected with practice is a basic rule we should always keep in mind
问题描述：
___theory must be closely connected with practice is a basic rule we should always keep in mind
A.Why B.What C.That D.what
答
C句子意思：理论必须紧密和实践结合起来是一个我们应该永远记住的基本原则.可以把句子结构调整为：A basic rule we should always keep in mind is that theory must be closely connected with practice.that 在这...