软件测试只能证明程序有错误，不能证明程序没有错误。

公元前494年罗马共和国进行一次审判，法官在听完原告债主的陈述后当庭把涉案的父子三人判与原告为奴隶，并给出“合理”的解释。之后愤怒的下层公民集体撤离会场，以示抗议。材料说明当时

A．平民与贵族的矛盾尖锐

B．古罗马司法程序严格

C．债务奴隶制把平民推到生存的边缘

D．这次平民斗争直接催生了成文法的诞生

进入涉密场所前，正确处理手机的行为是（）。

A、关闭手机后带入涉密场所

B、不携带手机进入涉密场所

C、将手机放入屏蔽柜

D、关闭手机并取出手机电池

女，38岁，结婚10年不孕，月经一直不规则，临床考虑为"无排卵型功血"。根据月经史，下列情况中，符合其诊断的是（）

A.周期紊乱，经期长短不一，经血量时多时少

B.周期正常，经期延长，经血量多

C.周期紊乱，经血量少，淋漓不尽

D.周期正常，月经中期少量出血

E.周期缩短，经血量稀少

     Big Ben is the nickname for the great bell of the clock in London. The name was given in honor of Sir

Benjamin Hall, who was in charge of the works when the bell was installed in 1856.

The clock has become a symbol of the United Kingdom and London. When a television or film-maker

wishes to quickly show a non-UK audience a certain location in Britain, a popular way to do so is to

show an image of the Clock Tower. The Clock Tower is also often voted as the Most Iconic London

Film Location.

     The Clock Tower is a focus of New Year celebrations in the United Kingdom, with radio and TV

stations tuning to its chimes (报时钟声) to welcome the start of the year.

     Londoners who live an appropriate (适当的) distance from the Clock Tower and Big Ben can, by

means of listening to the chimes both live and on the radio or television, hear the bell strike thirteen times

on New Year’s Eve. This is possible due to what amounts to an offset between live and electronically

transmitted chimes since the speed of sound is much slower than the speed of radio waves. Guests are

invited to count the chimes aloud as the radio is gradually turned down.

     The Clock Tower has appeared in many films, most notably in the 1978 version of The Thirty-Nine

Steps, in which the hero attempted to halt the clock’s progress (to prevent a linked bomb blowing up)

by hanging from the minute hand of its western face. It was also used in the film, Shanghai Knights,

starring Jackie Chan and Owen Wilson, and was depicted (描述) as being destroyed in Aliens of

London. In the Walt Disney film The Great Mouse Detective, it is even shown being destroyed by a

UFO!

1. From Paragraph 2, we know that Big Ben is        .

A. a landmark of the UK and London

B. a most popular scene for film makers

C. a must-see sight for tourists to London

D. a popular place where to have pictures taken

2. Why do some people hear the bell strike thirteen times on New Year's Eve?

A. They are standing too far away.

B. There is something wrong with Big Ben.

C. There's some technical problems in the radio broadcasting.

D. They hear the striking live and by radio waves at the same time.

3. The underline word "halt" in Paragraph 5 means "       ".

A. look into something          

B. get something to stop

C. make something work again

D. draw people's attention to something

4. In which of the following movies is the clock destroyed?

A. The Thirty-Nine Steps and Shanghai Knights.

B. Shanghai Knights and Aliens of London.

C. Aliens of London and The Thirty-Nine Steps.

D. The Great Mouse Detective and Aliens of London.

5.What would be the best title of the text?

A. The origin and development of Big Ben

B. Sir Benjamin Hall - the founder of Big Ben

C. Big Ben - significance in popular culture

D. Big Ben and New Year’s celebrations

多生牙可暂不处理的适应证是（）

A.阻生的多生牙位置较高

B.不妨碍恒牙的移动

C.不压迫恒牙牙根

D.外科手术拔除困难

E.以上都包括