后囟闭合的时间是：（） A.4周 B.8周 C.6个月 D.12个月 E.1岁半

②我赶紧拭干了泪，怕他看见，也怕别人看见。我再向外看时，他已抱了朱红的橘子往回走了。过铁道时，他将橘子□放在地上，自己慢慢□下，再□起橘子走。到这边时，我赶紧去□他。他和我走到车上，将橘子一股脑儿放在我的皮大衣上。于是扑扑衣上的泥土，心里很轻松似的。过一会说：“我走了，到那边来信厂我望着他走出去。他走了几步，回头看见我，说：“进去吧，里边没人。”等他的背影混入来来往往的人里，再找不着了，我便进来坐下，我的眼泪又来了。

“将橘子一股脑儿放在我的皮大衣上。于是扑扑衣上的泥土，心里很轻松似的。”这时父亲的思想是（）

A．好容易做完一件事，父亲心里轻松了

B．尽到父亲的责任，觉得踏实满足

C．爬月台买橘子不容易

D．橘子可以让儿子解渴，很愉快

Questions 6 to 10 are based on the following passage: (10 分)In previous generations, young people were under their parents’ control; now the teenagechildren of the West’s richest generation were ready for something to get excited about. The Beatlessimply put a spark to a fuse (导火线) that was waiting to be lit.Everything changed, and what changed for the Beatles was their lives and their working habits,in the midst of the hysterical (歇斯底里的)following the band attracted.. Because of the demand ofthe fans to see them perform, they played bigger and bigger venues (meeting places), especially inAmerica.But John, Paul, George and Ringo became increasingly unhappy that, because of the screamingof their fans, neither the band nor the audience could hear the music. Creatively frustrated and tiredof the pressures of life under siege (围攻) from their fans, they retired from playing concerts in 1966and decided to concentrate on recording.It was from this point that the brilliance of the Beades really began to reveal itself: they wouldrecord over their career some 200 songs. Never before nor since has any recording and writing groupeven developed and yet remained the same in the way the Beades did. Their songs never lost their universal appeal thanks to the warmth and timelessness of theirmelodies and lyrics.John and Paul were powerful singers with distinctive styles. It became apparent that, despite thefact that the songwriting credits were always equally attributed to them, Paul and John wrote andsang their own songs. George also contributed two or three of his own compositions to each of theBeatles eleven albums. Even Ringo wrote and sang the occasional song.

It can be inferred from the passage that（ ）

A．John and Paul were more talented and made greater contribution to the success of the band

B．John and Paul sang their own songs because they didn’ like each other’s style

C．George and Ringo never composed or sang theii" own songs

D．The Beatles maintained so much popularity with their works that no other recording or writing group could Compare

溶液片中可以作为润滑剂的是（）

A．可压性淀粉

B．微晶纤维素

C．微粉硅胶

D．PEG6000

E．硬脂酸镁

The contracts must be renewed one week( )their expiration.

A．on
B．against
C．the moment of
D．before

关系数据库管理系统所管理的关系是 ______。

A．一个DBF文件

B．若干个二维表

C．一个DBC文件

D．若干个DBC文件