题目<br>很难算要速度<br>要列公式(代数式)<br><img><br>答案解析<br>查看更多优质解析<br>举报<br>n×(n-1)÷2=20×19÷2=190<br>解析看不懂?免费查看同类题视频解析<br>查看解答
张线:=MA(CLOSE,181);<br>牛:=EMA(CLOSE,144)>=REF(EMA(CLOSE,144),1);<br>黄昏之星:=((((((REF(CLOSE,2) / REF(OPEN,2)) > 1.03) AND (REF(OPEN,1) ><br>REF(CLOSE,2))) AND ((ABS((REF(OPEN,1) - REF(CLOSE,1))) /REF(CLOSE,1))