近现代民商法之间的关系是（）。 A.完全分离 B.逐步融合 C.区别愈来愈大 D.完

在SQL查询中使用WHERE子句指出的是______。

A．查询目标

B．查询结果

C．查询视图

D．查询条件

我市北部山区盛产石灰石，石灰石的主要成分是碳酸钙。

（1）实验室中常用石灰石制取二氧化碳，化学的反应方程式为                      ；

其中碳酸钙中钙元素的质量分数为             。

（2）某校课外活动小组为了解石灰石资源的品质，对当地石材进行化学分析：取12.5g石灰石颗粒样品，置于烧杯中并加入足量稀盐酸，充分反应后称得混合物的总质量减少4.4g。则该石灰石中含碳酸钙的质量分数是　            　。

阅读理解

     The Beatles were the most influential band in pop history. In their 8year, 12album history, Paul

McCartney, John Lennon, George Harrison and Ringo Starr altered (改变) popular culture dramatically. And it wasn't just the suits and changing lengths of hair the four Liverpool boys wore that had such an

impact, but what they seemed to stand for. The world saw them as the voice a new generation, one with

a very different attitude to life.

     Their influence was at its height in the 1960s, but their music continues to stir listeners today.

However, up until recently one aspect of The Beatles was struck in Yesterday: The music had never

been remastered (重新灌录). But on September 9 that situation came to an end, with the release of the

entire band's music in a digital makeover. It is probably the biggest reissue (重新发行) in pop music

history, said British newspaper the Financial Times.

     The albums were remastered at Abbey Road Studios in London, the location where the band

produced much of their work. The cover of their last album, Abbey Road of 1969, featured the four

young men striding (大步行走) across a zebra crossing on Abbey Road itself. It is one of the most

famous of all Beatles imagines.

     Recently, to celebrate the 40th anniversary of the album, hundreds of Beatles lovers gathered there

to show their appreciation.

     Pop groups come and go. The boy band pursued by screaming fans one year will be forgotten the

next. But The Beatles are one of the few groups whose music seems to have endured (持久). Why?

Paul McCartney's biographer Barry Miles has an explanation: "They were the first rock band…

and they just happened to be the best. They were the first band to play stadiums, to have their own

products. They were groundbreaking in every way." he says.

1. Why did The Beatles change popular culture?

A. Because of the suits of the four Liverpool boys.

B. Because of changing lengths of hair the four Liverpool boys wore.

C. Because of their albums.

D. Because of their different attitude to life.

2. Which of the following statements is FALSE according to the second paragraph?

A. The Beatles influenced people at its height in the 1960s.

B. Their music yesterday had never been remastered.

C. The entire band's music in a digital makeover will be remastered.

D. On September 9, their music came to an end.

3. What is not the reason why their music can endure?

A. That they were the first rock band.

B. That they were the best one.

C. That they were the first band to play stadiums and to have their own works.

D. That they wore special suits.

4. What's the main idea of the passage?

A. What is The Beatles?

B. Legendary band stays on top in digital times.

C. The origin of The Beatles.

D. Why is The Beatles popular with people?

弹簧管架是（）与刚性支架组合在一起构成的。

A、弹簧导向板

B、弹簧吊架

C、弹簧

D、滑托

简述侵染循环的组成。