ARPM的定义为（） A.每客户平均通话时长 B.每用户平均收入 C.每分钟通话平均

打开咬合装置戴用后，后牙一般打开

A．0.5mm

B．2～3mm

C．3mm

D．4～5mm

E．只要患者能适应越高越好

现有六种短周期元素A、B、C、D、E、F，其原子序数依次增大，其中B与C、D与F分别位于同一周期，A与D、C与F分别位于同一主族，且A、D两元素原子的质子数之和是C、F两元素原子质子数之和的一半。又知六种元素所形成的常见单质在常温常压下三种是气体，；种是固体。请回答下列问题：

（1）B元素单质的电子式                ，F元素氧化物的晶体类型为         。

（2）由A、C两元素可组成X、Y两种化合物，X在MnO₂作用下可以分解成Y，写出X转化为Y的化学方程式         。

（3）若E是非金属元素，但能表现出一些金属元素的性质。写出E与D的氧化物的水溶液反应的离子方程式                   。

（4）一定条件下，A的单质与B的单质充分反应生成6.8gW气体时，可放出18.48kJ热量，写出该反应的热化学方程式                   。

（）是生产过程中应控制的各种技术数据，是进行物料衡算，公用工程量计算和设备计算的重要依据。

A．流程参数

B．设备参数

C．工艺参数

D．物料参数

镶嵌画“查士丁尼及其随从”是中世纪（）艺术的代表作品之一。

October 15, 1970 was declared International White Cane Safety Day (IWCSD) for the first time by the President of the International Federation of the Blind (IFB). This date was adopted at the first convention of the IFB, held in Colombo on October 4, 1969. The object of the exercise is to enable the general public to have a better understanding of blindness and visual handicap, and to make people more aware of the white cane as a mobility aid.

Peguilly d’Herbemont was born on 25th June 1888 into an old French noble family of the same name. In her youth she led the conventional and protected existence, lack of great activity, of a girl from a “good family”, an existence reminding of the life of the aristocracy(贵族) before the French Revolution. She never visited a public school, but was educated by German and English governesses and nuns. Her movements were restricted and were mainly confined to the family positions in Paris and Belgium, but she spent most of her time at the castle of Charmois not far from Verdun.

In the process of helping individual blind people across the road, Peguilly d’Herbemont was made aware by narrow scrapes(刮擦) which almost led to accidents, of the dangerous situation of the visually impaired brought about by the steadily increasing traffic on the roads. She first spoke about measures to protect the blind against street hazards to her mother in 1930, but she was of the opinion that it was unfit for a lady of good society to create a public outcry and advised her to stick to the transcription of books, a popular pastime of ladies of rank at the time.

But the idea did not leave her. The urgent wish to encourage the integration(成为一体) of the blind into society by providing them with a means of moving about more freely without endangering others, and at the same time attracting the attention of passers-by ready to offer assistance, caused her to take the unusual step of writing to the editor of the Paris daily Echo de Paris in which she suggested issuing the blind of the Paris region with white sticks similar to those used by the traffic police.

The editor took up the idea, published it in November 1930 and saw to it that the relevant authorities acted with atypical speed. Thus it was that the white cane received official backing, and on 7th February 1931.

小题1:The underlined words “the exercise” here refer to _____.

A．the founding of the IFB

B．the declaration of IWCSD

C．the convention of the IFB

D．the first convention of the IFB小题2: Which of the following is true about Peguilly d’Herbemont?

A．She led a typical aristocrat life when she was young.

B．Though she could travel around Europe, she spent most time at Charmois.

C．She was taught German and English at a public school.

D．She worried about possible street hazards for the blind, witnessing many traffic accidents.小题3:_____ gave her the white cane idea.

A．Her concern about the dangerous situation for the blind caused by the increasing traffic

B．The accident she had when helping blind people across the road

C．The scrapes she got when crossing the road

D．Her urgent wish to integrate into society together with the blind小题4:According to the passage, which of the following statements is NOT true?

A．Peguilly d’Herbemont’s mother didn’t want her to draw the public’s attention.

B．It was common for people to write to newspapers to voice their opinion at the time.

C．Peguilly’s strong desire to help the blind made her not a looker-on but an advocate.

D．The editor contributed a lot to the declaration of International White Cane Safety Day.小题5:This passage mainly wants to tell us _____.

A．Peguilly d’Herbemont’s achievements

B．how to care for the blind

C．the function of the white cane

D．how International White Cane Safety Day came into being