婉拒客人预订房时，下列做法欠妥当的是（）。A、主动提出若干建议 B、立即终止服务 C

公牛，配种后，髋关节变形，隆起，他动运动时，可听到捻发音。站立时，患肢外展，运步强拘，患肢拖曳而行，该牛可能发生了（）

A.髋关节前方脱位

B.髋关节外方脱位

C.膝关节内方脱位

D.髋关节内方脱位

E.髋关节后方脱位

土压式盾构开挖控制说法正确的是（）。

A.以土压和排土量为主，辅以塑流性改良控制、盾构参数控制

B.以土压和塑流性改良控制为主，辅以排土量、盾构参数控制

C.以土压和盾构参数控制为主，辅以排土量、塑流性改良控制

D.以土压为主，辅以塑流性改良控制排土量、盾构参数控制

阅读理解。

     You have stopped to buy food on your drive across Canada. You pick up a can of peas.

On one side, the label(标签) says "peas" . On the other, it says "petit pois". By law food labels

and many other printed notices in Canada must be in two languages---English and French.

     The reason is simple: many Canadians speak English but not French. Others speak French

but not English. By requiring that label be printed in both languages, Canada is trying to ease

the problems of living in a bilingual society.

     English is the dominant (important) language in most of Canada. In all provinces but Quebec,

most of the people speak English. Quebec was the center of French settlement in colonial

(殖民地的) times, and most of its people are descendants (后裔) of French settlers. Today

nearly two out of three people in Quebec speak only French. Communities of French-speaking

people also live in other provinces, especially in the Maritime Provinces.

     French Canadians are bound (约束) together not only by language but also by religion. Like

their French ancestors (祖先), most are Roman Catholics. Most English-speaking Canadians are

Protestants.

1. Why does the food label must be printed in two languages in Canada? 

A. Because the Canadians know both English and French.

B. Because the Canadians know either English or French.

C. Because many Canadians like French besides English.

D. In order to make the English and the French understand it easily

2. What's the meaning of the underlined word "bilingual" in the second paragraph ?

A. developed.    

B. rich.    

C. two languages.    

D. poor.

3. Which statement is correct according to the passage? 

A. Today all the people in Quebec don't only speak French.

B. People in all the provinces in Canada speak English besides Quebec.

C. Most English-speaking Canadians are Catholics.

D. French Canadians are bound together not by language but by religion.

4. This passage mainly tells us ___________. 

A. food labels in Canada must be in two languages

B. Quebec is the only province where French is spoken

C. Canada is a bilingual nation

D. English is the dominant language in most of Canada

关于异常的含义，下列描述中最正确的一个是( )。

A．程序编译错误

B．程序语法错误

C．程序自定义的异常事件

D．程序编译或者运行时发生的异常事件

什么是果蔬的品质？它包括哪些内容？