问题 问答题 简答题

油品代用原则

答案

参考答案:

A.精炼程度高的油代替精炼程度低的油

B.动植物油不能用在有氧化物的地方

C.一般工况下用高粘度的油代替低粘度的油,对精密机械则用低粘度代替高粘度

E.对重载外,应用极压性能好的油代替极压性能差的油。

阅读理解

阅读理解。

     In the USA, there are many types of restaurants. Fast food restaurants are very famous. You can

find McDonald's and Kentucky Fried Chicken in many countries around the world. You look at a

menu above the counter(柜台), and say what you'd like to eat. You pay the person who serves you.

You take your food and sit down or take it away. There's no need to leave a tip"(小费).

     In a coffee shop you sit at the counter or at a table. You don't wait for the waitress to show you

where to sit. She usually brings you coffee when you sit down, You tell her what you'd like to eat and

she brings it to you. You pay the cashier as you leave.

     In a family restaurant the atmosphere is casual, but the waitress shows you where to sit. Often the

waitress tells you her name, but you don't need to tell her yours. If you don't eat everything, your

waitress gives you a doggy bag to take your food home. You add an extra fifteen percent to the bill as

a tip.

     In top class restaurants, you need a reservation (预定) and you need to arrive on time. The waiter

shows you where to sit.If you have wine, he may ask you to taste it. You can only refuse it if it tastes

bad, or if you don't like it. When you get your bill, check it and then add fifteen to twenty percent to it

as a tip for the waiter.

1.There are _____ types of restaurants here.

A.three          

B.four            

C.five            

D.six   

2.You pay the person who _____ at the fast food restaurant.

A.brings food to you                    

B.tells you her name

C.shows you the seat                    

D.you talk to    

3.We should sit _____ in a coffee shop.

A.near the door                        

B.in the corner    

C.at the counter                        

D.on the floor

4.In what kind of restaurant does the waitress often tell you her name?     

A.In a top class restaurant:              

B.In a fast food restaurant.  

C.In a coffee shop.                    

D.In a family restaurant.

5.How much do you need to tip in a top class restaurant?    

A.Ten percent.                        

B.Fifteen percent.

C.Thirty percent.                    

D.Forty percent.

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