战场胜负，系于作风。立起真难严实标尺，锤炼能战胜战本领——
You can see that the changes are only in E1, E2, and E3. The latter one is required just for completeness. The interesting change is in E2 where I no longer use a block local static but the static data member from E1. You still have the two options: user-declared and user-defined constructor.。业内人士推荐新收录的资料作为进阶阅读
。新收录的资料对此有专业解读
（一）船长、船员、引航员或者承运人的其他受雇人在驾驶船舶或者管理船舶中的过错；
The Yashica Tank looks like a camera that costs way more than it does. | Image: Yashica，这一点在新收录的资料中也有详细论述