实质追索甲、乙两人多次对阵下棋 ,甲总是胜多负少 .今天两人再对弈一局 ,开局前 ,能预测说 :“甲一定胜乙”吗 ?回答是“不一定”.像这样一些在事件发生前只能说“不一定”、“有可能”的问题 ,反映的是一些不确定现象 .在我们生活中 ,会遇到大量的不确定现象 .例如 ,买彩票能 Responsible for the actual pursuit of both A and B against the board, A is always winning more than negative. Today the two players play against each other. Before the start, they can predict: “A certain victory over B”? The answer is “Not necessarily “. Some of these problems that can only be said to be ”not necessarily“ or ”possible" before the incident are reflected in some uncertainties. In our lives, we will encounter a lot of uncertainties. For example, buying lottery tickets. can