基于事件系统实现的外卖派送系统中，订单事件的事件处理机制更适合采用（）
举一反三
- <p>(HJ15)如果组织环境中的要素频繁的发生变化，我们将之称之为<span style="background-color: rgb(255, 255, 255); color: rgb(0, 0, 0); display: inline; float: none; font-family: sans-serif; font-size: 16px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; word-spacing: 0px;">（ ）</span>的环境。如果变化不大，我们称之为<span style="display: inline !important; float: none; background-color: rgb(255, 255, 255); color: rgb(0, 0, 0); font-family: sans-serif; font-size: 16px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; word-spacing: 0px;">（ ）</span>的环境。</p>
- <p><span style="color: rgb(0, 0, 0); font-family: 'Segoe UI', 'Lucida Grande', Helvetica, Arial, 'Microsoft YaHei', FreeSans, Arimo, 'Droid Sans', 'wenquanyi micro hei', 'Hiragino Sans GB', 'Hiragino Sans GB W3', FontAwesome, sans-serif; font-size: 16px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 25.888px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none; background-color: rgb(255, 255, 255);">幼儿的学习与发展在任何一个生活环节都是是综合表现出来的，这要求幼儿教师遵循（）</span></p>
- 下列属于Python注释的⽅式为______。 A: -- B: style=" font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; " C: D: E: *...*
- <p class="p1" style="border:0px; margin:0px 0px 1.416em; padding:0px; text-align:left; -webkit-text-stroke-width:0px"><span style="font-size:16px"><span style="text-rendering:optimizeLegibility"><span style="outline:0px"><span style="font-style:normal"><span style="font-variant:normal"><span style="font-weight:400"><span style="font-stretch:normal"><span style="line-height:1.6em !important"><span style="font-family:"Songti SC""><span style="vertical-align:baseline"><span style="color:#4c4c4c"><span style="letter-spacing:normal"><span style="orphans:2"><span style="text-transform:none"><span style="white-space:normal"><span style="widows:2"><span style="word-spacing:0px"><span style="background-color:#ffffff"><span style="text-decoration-style:initial"><span style="text-decoration-color:initial"><b style="text-rendering:optimizeLegibility; font-weight:bold; margin:0px; padding:0px; border:0px; outline:0px; font-style:inherit; font-variant:inherit; font-stretch:inherit; font-size:inherit; line-height:1.4em; font-family:inherit; vertical-align:baseline"> 实践题（请根据以下给定的研究情境回答问题）</b></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></p> <p class="p1" style="border:0px; margin:20px 0px 1.416em; padding:0px; text-align:left; -webkit-text-stroke-width:0px"><span style="font-size:16px"><span style="text-rendering:optimizeLegibility"><span style="outline:0px"><span style="font-style:normal"><span style="font-variant:normal"><span style="font-weight:400"><span style="font-stretch:normal"><span style="line-height:1.6em !important"><span style="font-family:"Songti SC""><span style="vertical-align:baseline"><span style="color:#4c4c4c"><span style="letter-spacing:normal"><span style="orphans:2"><span style="text-transform:none"><span style="white-space:normal"><span style="widows:2"><span style="word-spacing:0px"><span style="background-color:#ffffff"><span style="text-decoration-style:initial"><span style="text-decoration-color:initial">有学者想要研究中国城市中农民工的城市定居意愿，基于对移民研究的相关文献阅读，发现对于移民的定居意愿到底是由就业与收入预期（经济动机因素）、还是他们在流入地和流出地的社会交往与融入程度（社会融入因素）决定，学者们还存在争论。基于此，学者通过对中国城市农民工的问卷调查数据来检验其定居意愿是受经济因素还是社会融入因素的影响。</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></p> （1）这是一项什么类型的研究？ <p></p> <p></p>
- <span style='background-color: transparent; color: rgb(76, 76, 76); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-stretch: 100%; font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 23.6px;'>陈子昂和李白对唐代文学的贡献是什么？______ </span>