发布时间:2025-02-02 19:13:57
所谓“心中有数”,就是指在做事之前,心中已有所准备。所以要做到“心中有数”,只需要在行动之前做好充分准备,不打无把握之仗,凡是谋定而后动即可。
一桶油连桶重17千克用了半桶后连桶重9千克油桶里原来有油多少千克
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