代码$(selector).wrap(wrapper);中的wrapper表示包裹元素的结构化标记

Wrapper Class(英译汉)

The shopper gets rid of the wrapper immediately because______. A: he is careless. B: it adds to the weight. C: it is difficult for him to handle. D: it has no importance for him.

观察者模式与下面哪种模式的作用比较类似 A: 事务(Transaction)模式 B: 包装器(Wrapper)模式 C: 接口(Interface)模式 D: 模型-视图(Model/View)模式

（ ）方法的思想将子集的选择看作是一个搜索寻优问题，生成不同的组合，对组合进行评价，再与其他的组合进行比较。 A: LDA方法 B: Filter方法 C: Wrapper方法 D: Fisher方法

Which of the following lacks alliteration? A: Softer be they than slippered sleep the lean lithe deer the fleet flown deer. B: Some papers like writers, some like wrappers. Are you a writer or a wrapper? C: All for which America stands is safe today because brave men and women have been ready to face the fire at freedom's front. D: All that is left for the administration is to not forget why they're there.