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【简答题】
With technology constantly evolving it comes as no surprise to see Amazon ( 亚马逊 ) launching a larger version of its e-reader ( 电子阅读器 ). The new version of the Kindle DX, with a screen as big as an A4 page, is aimed at reading newspapers, magazines and documents. The question is, are people ready to say goodbye to books and papers? “With other e-readers on the market and the Kindle brand becoming more well-known, it seems like a question of when will we see it, not if.” says Kevin, a university professor. Once you have bought your Kindle DX reader, you then gain access to the Kindle store. The virtual ( 虚拟的 ) store has more than 225,000 books available to buy as well as 37 newspapers and 28 magazines which you can subscribe to ( 订阅 ). And they say this is just the beginning. Amazon’s vision is to allow user access to every book that has ever been printed, in any language, and all in less than 60 seconds. Kindle is the first to use wireless technology which enables users to buy books from a virtual store in 60 seconds. However, will we actually benefit from the Kindle DX? Well apparently we will, or at least students will, especially if you are studying literature. Without printing and shipping costs, books could be cheaper and struggling with your books would be a thing of the past. The initial ( 起初的 ) price of the Kindle DX is quite expensive ($349), but if you worked out the overall costs of textbooks, it doesn’t seem too bad.
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参考答案:
举一反三
【多选题】语言函数首部包括哪三部分( )。
A.
函数类型
B.
头文件
C.
函数名
D.
函数参数。
【单选题】关于制动助力真空系统应用的真空泵,以下( )不是其主要类型。
A.
单叶片式真空泵;
B.
离心式真空泵;
C.
柱塞式真空泵;
D.
多叶片式真空泵单;
【简答题】滞报金的日征收金额为进口货物完税价格的万分之五,以人民币()为计征单位,起征点为人民币50元,不足人民币1元部分免于计征。
【单选题】关于制动助力真空系统应用的真空泵,以下( )不是其主要类型。
A.
单叶片式真空泵
B.
多叶片式真空泵单
C.
柱塞式真空泵
D.
离心式真空泵
【单选题】()主要用于低压液压传动系统。
A.
齿轮液压泵
B.
叶片液压泵
C.
柱塞式液压泵
D.
离心液压泵
【判断题】滞报金的日征收金额为进口货物完税价格的千分之五,以人民币“元”为计征单位,不足人民币1元的部分免予计收。()
A.
正确
B.
错误
【单选题】柱塞泵主要应用于( )系统中。
A.
低压
B.
中压
C.
高压
【多选题】函数首部包括哪三部分?
A.
函数返回值类型
B.
函数名称
C.
形式参数列表
D.
实际参数列表
【单选题】()主要用于高压,大流量和流量需要调节的液压传动系统。
A.
齿轮液压泵
B.
叶片液压泵
C.
柱塞式液压泵
D.
离心液压泵
【多选题】串行通讯可以对一组参数编程,修改,它们主要是()
A.
波特率
B.
奇偶校验
C.
每个字符长度
D.
结束位长度
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