What kind of elements should be included when we are designing the itinerary?

A . queue creation B . determining packet drop thresholds C . determining the random early detection method D . traffic classification E . queue scheduling F . FIFO configuratio

A . Do More with less B . Improve Business Processes C . Provide Flexible Channel and Delivery Options D . Offer Enhanced Customer Service

A、 Date B、Greeting C、 Content D、Closing and Signature

A．An office product supplier B．An international marketing company C．A financial service provider D．A shipping company

A．Items that have been personalized B．Items damaged during shipping C．Items unaccompanied by an original receipt D．Items ordered more than a month ago

Scientists have learned a great deal about the kinds of food people need. They say that there are several kinds of food people should eat every day. What are these classes of food？ They are 1) green vegetables of all kinds, such as string beans, peas, lettuces, and cabbages; 2) fruits such as apples, peaches and bananas; 3) other vegetables, examples of these are beets, onions, carrots, tomatoes and so on; 4) meat of all kinds, fish and eggs; 5) milk and food made from milk, such as butter, cheese and ice cream; 6) bread or cereal. Rice is also in this class of food. People in different countries and different areas of the world eat different kinds of things. Scientists say that none of these differences are really important. It doesn't matter whether food is eaten raw or cooked, canned or frozen. It doesn't matter if a person eats dinner at 4 o'clock in the afternoon or at 11 o'clock at night. The important thing, they say, is that every day a person should eat something from each of these kinds of food. There are two problems, then, in feeding the ever-increasing number of people on earth. The first is to find some way to feed the world population so that no one is hungry. The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy. 61、What have scientists learned a great deal about？() A.The kinds of food that should be eaten every day B.whether to eat food raw or cooked C.When to eat food every day D.How much food to eat every day 62、What is important in eating, according to the scientists？() A.Eat one's meals at regular intervals B.eat raw or cooked food, but not canned or frozen food C.Eat a variety of necessary foods D.eat vegetables and fruits more than meat and cereal 63、What problems are facing the world today？() A.how to provide enough food for the ever-increasing population and teach them how to eat B.how to persuade people of the world to change to a healthy diet and not to waste food C.how to find ways to feed the world population and to make sure that they have the right D.How to convince governments of all the countries the importance of developing agriculture 64、What green vegetable is not mentioned in the passage？() A.Lettuce B.Pea C.Spinach D.Cabbage 65、 What can you infer from the passage？() A.How to feed the huge world population is the most important concern of all scientists B.the world is short of food and many people are going hungry C.Human beings are striving for more food to feed their young D.the scientists' findings will help people everywhere to select a healthy diet