下列4个选项中,正确的一项是A.存储一个汉字和存储一个英文字符占用的存储容量是相同的

题型:单项选择题

问题:

下列4个选项中,正确的一项是

A.存储一个汉字和存储一个英文字符占用的存储容量是相同的

B.微型计算机只能进行数值运算

C.计算机中数据的存储和处理都使用二进制

D.计算机中数据的输出和输入都使用二进制

考点:计算机等级考试B笔试一级B笔试61
题型:单项选择题

(12分)一束电子流经电压U加速后,在距两极板等距离处垂直进入水平平行板间的匀强电场,如右图所示,若两板间距离d,板长l,那么,要使电子能从平行板间飞出,两个水平极板上最大能加多

大电压?           

题型:单项选择题

已知S=5+9+13+…+101,分别用“For”语句和“While”语句描述计算S这一问题的算法过程.

题型:单项选择题

对驾驶已达到报废标准的机动车上路行驶的驾驶人,会受到下列哪种处罚?

A.处15日以下拘留

B.吊销机动车驾驶证

C.处20以上200元以下罚款

D.追究刑事责任

题型:单项选择题

“It is one of the few bright spots in the Chinese economy,” says Zeng Ming. He is talking about e­commerce. Mr. Zeng, the chief strategy officer for Alibaba, a giant Chinese Internet firm, predicts that digital transactions on his firm's platforms will top 1 trillion yuan($159 billion) this year—more than Amazon's and eBay's combined. That is a bold claim, but consider what happened on Singles Day.

Invented a few years ago by students and seized upon by digital marketers, this festival for lonely hearts falls annually on the 11th day of the 11th month(since 1 is the loneliest number). It is like St Valentine's Day, only worse. Singletons show each other with tender gifts: a barrage of pearls; a storm of sweets.

This November 11th they spent a surprising 19 billion yuan on Alibaba's online platforms—a fourfold increase on a year ago, and more than double what Americans spent online last Cyber Monday(the Monday after Thanksgiving, when retailers urge Americans to shop online). About 100 million purchases were logged, accounting for 80% of the packages shipped that day. Couriers(快递员) were buried in parcels.

So life is good for China's e­tailers. Then? Not exactly. The number of digital marketers is increasing and online sales are booming. Consumers are enjoying lower prices, better service and more variety. The problem? The pressure on profits in Chinese e­commerce is worse than in America, reckons Elinor Leung of CLSA, a broker. “Almost no one makes money,” she says.

The fiercest battles are being fought between online retailers and their bricks­and­mortar(实体的) rivals. Dangdang, a firm that resembles Amazon, and 360buy, another online retailer, have cut prices fiercely. Tencent, a cash­rich online giant known for its instant­messaging software, is splashing out to win market share. 360buy has also just raised $400 millon from investors to do the same. But it is unclear how much longer such firms can burn through capital.

小题1:What's the best title of this passage?

A.The Ambition of Alibaba

B.Fierce Competition between Retailers

C.A New Festival for the Singles

D.Chinese Booming E­commerce小题2:According to Zeng Ming, this year Alibaba will ________.

A.outweigh Amazon and eBay in worldwide influence

B.rank top among all the Internet firms

C.have more than 159 billion dollars' sale

D.create another sales miracle just like the one on Singles Day小题3:How many packages were shipped on November 11th from Alibaba's online platforms?

A.About 80 million.

B.About 100 million.

C.About 125 million.

D.About 180 million.小题4:What's the author's attitude towards online retailers in China?

A.Optimistic.

B.Concerned.

C.Sympathetic.

D.Indifferent.

题型:单项选择题

学生在心理和道德上的一个重要特点,就是()

A.好坏不分

B.敌视教师

C.向师性

D.攀比之风

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