http://img.ls365.com/ueditor/net/upload/image/20180426/6366035092098676654012708.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035312688171304366307.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366034993863850805110855.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035059960889859687499.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035051025133654320355.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035028809465706812491.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366034970049261752618989.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035277107147855060410.png

日期：日期：2026-11-09

下列等式中正确的是

日期：日期：2026-11-09

已知发射一枚导弹击中敌机的概率为0.8，如果某人有5次发射的机会，那么他恰好击中3次的概率为（ ）.

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035175758263509077112.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035022204029106664272.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035215566067207102453.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366034985981347502794857.png

日期：日期：2026-11-09

从一副52张扑克牌中任意抽取三张，那么两张都是黑桃的概率是（ ）.

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035263848719104517569.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035068888248153797214.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035076101067754465141.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366035104535868907176638.png

日期：日期：2026-11-09

http://img.ls365.com/ueditor/net/upload/image/20180426/6366034952404004401473916.png

日期：日期：2026-11-09