若a,b是有理数,且(a+b)-(a-b)>0,则 [ ] A.a,b同号 B.

题型:选择题

问题:

若a,b是有理数,且(a+b)-(a-b)>0,则 [ ]

A.a,b同号

B.a,b异号

C.a为正数

D.b为正数

考点:有理数的加减混合运算
题型:选择题

The rapid growth of Smartphones and electronic tablets(平板电脑)is making the Internet favourite for Americans reading news, a report said.

News consumption online increased 17% last year from the year before. Television news, newspapers, radio and magazines all lost audience last year. For the first time, the number of people who get news online at least three times a week is larger than the number of people who get news from the newspapers. TV news has been the most popular since the 1960s. It has replaced the afternoon newspapers. But now the online news seems to be more popular than the TV news.

People are used to having the Internet available on phones or small tablets. In December, 2010, 41% of Americans said they got most of their news on the Internet, more than double the 17% who said that a year earlier, the report said. In January, 2011, 7% of Americans owned electronic tablets, nearly double what it was three months earlier. It was the fastest-growing new digital technology, ahead of mobile phones when they were introduced. The online ad income was expected to surpass(超过)print newspaper ad income for the first time in 2010.

The news business used to be the intermediary(中介). You needed newspapers and TV stations to reach your customers. In this age of the computer, it’s the software developers that you need.

小题1:Americans like getting news from ________ best today.

A.TV news

B.the Internet

C.newspapers

D.radios小题2:About ________ % of Americans got most of their news on the Internet in 2009.

A.7

B.17

C.24

D.51小题3:Which of the following media has more readers?

① TV news        ② the Internet        ③ the afternoon newspapers

A.①>②>③

B.②>①>③

C.③>①>②

D.③>②>①小题4:About 3.5% of Americans had electronic tablets in ________.

A.October, 2010

B.December, 2010

C.February, 2011

D.March, 2011小题5:The news business depends on ________ today.

A.the reporters

B.the readers

C.the newspaper sellers

D.the software developers

题型:选择题

阅读下列文段,完成后面的问题。

  近塞之人有善术者,马无故亡而入胡。人皆吊之,其父曰:“此何遽不为福乎?”居数月,其马将胡骏马而归。人皆贺之,其父曰:“此何遽不能为祸乎?”家富良马,其子好骑,堕而折其髀。人皆吊之,其父曰:“此何遽不为福乎?”居一年,胡人大入塞,丁壮者引弦而战。近塞之人,死者十九。此独以跛之故,父子相保。

1.解释下列划线的词语。

(1)马无故而入胡(     )

(2)数月(     )

(3)人皆之(     )

(4)此何不为福乎(     )

(5)坠而折其(     )

(6)父子保(     )

2.用原文填空。

(1)失马之福是:_____________

(2)得马之祸是:_____________

(3)跛腿之福是:_____________

3.用现代汉语翻译下列文言句子。

(1)居数月,其马将胡骏马而归。

________________________________________________

(2)胡人大入塞,丁壮者引弦而战。

________________________________________________

4.故事的寓意是:_______________。

5.这则寓言所写的中心是____,以____为顺序,以____为线索,其发展过程是____。

6.这则寓言主要运用了____手法,其体现词语有(请分组摘录)____、____、____、____。

这样写的作用是_______________。

7.本文涉及____、____、____三个人物,主要人物是____,他的特点是_______________。

8.这则寓言所写的人和物都与边塞有关,主要体现在_______________等词语上;这则寓言被后人概括成成语_______________。

题型:选择题

( ) is a major port of Canada.

A.Rabat

B.Quebec

C.Subic

D.Osaka

题型:选择题

检测总补体活性,采用50%溶血实验是因为( )

A.50%溶血实验比100%溶血实验简单

B.以50%溶血作为终点较100%溶血作为终点更敏感

C.以50%溶血作为终点较100%溶血作为终点更为节省成本

D.以50%溶血作为终点较100%溶血作为终点可节约时间

题型:选择题

涉及商业秘密的行政案件,一律不公开审理。

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