题目内容

道德感有鲜明的历史感和阶级性。

A. 对
B. 错

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Skim the text, and answer the question that follows.Milkman David Sandedge has ended his doorstep deliveries on Merseyside, after 63 years. David was just seven years old when he took up his job. He left his first pint of milk at a front door on Handover Drive. He used to help his father deliver the milk.In 1953, David and his father had 7,500 bottles a day on their milk float. On his last visit to Handover Drive he had just 300 bottles of milk for regular customers. From now on we will all have to buy milk from shops and supermarkets.Question: Whichi of the following best sums up the article?A. David has been a milkman all his life, but soon he will retire. He doesn't sell as much milk as he used to.B. David is retiring now, because he sells too much milk and cannot keep up with his round.C. David is retiring from being a milkman to go and work in a shop or supermarket.D. David is passing his round onto his son.E. David had 300 regular customers.

以下哪个符号用于表示jQuery

A.
B. $
C. &
D. *

应该使用以下哪个语法选择和隐藏网页上的所有

元素

A. $("h1").hide()
B. $(h1).hide
C. ("h1").hide
D. $"h3".hide()

Rick希望在网页上

元素的内容结束处插入一个单词。他应该使用以下哪个函数执行此任务:

A. append()
B. preprend()
C. insert()
D. after()

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