单选题According to the talk, which of the terms are different from each other?A Written Arabic and pan-Arabic.B Classical Arabic and written Arabic.C Modern Arabic and written ArabicD Modern Arabic and colloquial Arabic.

下列表面活性剂中属于W／O型乳化剂的是( )

A．Arabic gum

B．Myrij 45

C．Span 80

D．Fween 80

E．Pluronic F 68

B

We know good manners are important . Today I am going to tell you something about manners in different countries . I think you already know that people in different countries usually have different ways of doing things . Something that is rude in one country may be quite polite in another . For example , in Britain you mustn’t lift your bowl to your mouth when you are having liquid food . That is considered bad manners in Britain . But in Japan you needn’t worry about making a noise when you drink something . It shows that you are enjoying it . In Britain we try not to put our hands on the table at all during a meal . In Mexico , however , guests are expected to keep their hands on the tablethroughout a meal . In Arabic countries we must be careful with our hands . You see , in Arabic countries you mustn’t eat with your left hand. This is considered to be very impolite . So, what should you do if you visit a foreign country ? Well , you needn’t worry . You can ask the native people there to help you and you can just watch carefully and try to do what they do .

( )61. In Arabic countries you must be careful with your _____.

A. feet

B. mouth

C . eyes

D. hands

The(72)is a system for linking hypertext documents Originally, each document was a page written in(73)with hyperlinks to other documents．Nowadays，XML is gradually starting to take over from(73)．

A．Web

B．E-mail

C．DNS

D．FTP

Which of the following is true ?

A. In different countries, the manners are the same .

B. Different manners in different countries .

C. Good manners are not important .

D. In Arabic countries we mustn’t be careful with our hands .