The more expensive kind of food is______.

A . had B . have C . has D . having

A . incurs B . occurs C . suffers D . become

A . had B . have C . has D . having

A . is not B . is C . will probably be D . is one of the way by which it i

A .  advanced queuing B .  data compression C .  header compression D .  increasing link capacity

A．changeable B．unchanging C．diverse D．strong

Sharks do not have bones, and a shark has an extremely good sense of smell. It can find. small amounts of substances in the water, such as blood, body liquids and chemicals produced by animals. Sharks also sense electrical and magnetic power linked to nerves and muscles of living animals. These powerful senses help them find their fond. Some sharks will eat just about anything. Many unusual things have been found in the stomachs of some large sharks. They include shoes, dogs, a cow's foot and metal protective clothing. About forty percent of the different kinds of sharks lay eggs. The others give birth to live young. Some sharks carry their young inside their bodies like humans do. Scientists are beginning to understand the importance of sharks to humans. Medical researchers want to learn more about the shark's body defense system against disease. They know that sharks recover quickly from injuries. Sharks appear never to suffer infections, cancer or heart diseases. What is this passage mainly about？ A．The necessity of protecting sharks. B．The living environment of sharks. C．The dangers of sharks to human beings. D．An introduction to sharks.

A、<p>It is the largest of its kind</p> B、<p>It is going to be expanded</p> C、<p>&nbsp;It is displaying more fossil specimens</p> D、<p>&nbsp;It is staring an online exhibition</p>

A．Right B．Wrong C．Not mentioned

A．True B．False

A．centered on B．centered at C．centered towards D．centered for

A．lower the costs of the products B．make its food taste better than ever before C．cure the heart disease D．do good to the health of consumers

There can be no doubt that the growth in advertisement is one of the most striking features of the western world in this century. Many businesses such as those handling frozen foods, liquor, tobacco and medicines have been built up largely by advertisement. We might ask whether the cost of advertisement is paid for by the producer or by the customer. (19) Since advertisement forms part of the cost of production, which has to be covered by the selling price, it is clear that it is the customer who pays for advertisement. However, if large scale advertisement leads to increased demand, production costs are reduced, and the customer pays less. It is difficult to measure exactly the influence of advertisement on sales. When the market is growing, advertisement helps to increase demand. When the market is shrinking, advertisement may prevent a bigger fall in sales than would occur without its support. What is clear is that businesses would not pay large sums for advertisement if they were not convinced of its value to them. Advertisement is often used to______. A．deceive customers B．increase production C．arouse suspicion D．push the sale

A、Social change tends to meet with more difficulty in basic and emotional aspects of society. B、Disagreement with and argument about conditions tend to slow down social change. C、Social change is more likely to occur in the material aspect of society. D、Social change is less likely to occur in what people learned when they were young.

A．Interest expense B．Depreciation and amortization C．Selling, general and administrative expenses D．Research and development

A．No No B．No Yes C．Yes No

A．Catering, cosmetic, recreation, sacrificial and warring equipment B．Catering, sacrificial, cosmetic, recreation and production equipment C．Servant, sacrificial, cosmetic, travel and production equipment D．Catering, sacrificial, cosmetic and recreation equipment

Fairy tales were not always intended for children.We know this because some of these stories have existed for hundreds of years and were passed down from generation to generation through songs and drama.They were considered entertainment for everyone, not only for young people.In these ancient stories, the heroes were extremely clever, fiercely independent, and never gave up.Over the years, some of the heroes’ qualities and story lines have been changed to fit the times. Psychologists think that fairy tales have a positive influence on children because they present the two sides of good and evil very clearly.When children hear the stories, they develop sympathetic feelings for the heroic characters.In each tale, they can see that there are many different kinds of people in the world and that we all have a choice about what kind of person we want to be.We can choose to do good actions, rather that bad ones, in our lives. What kind of values can children learn from fairy tales？ In “The Princess and the Pea,” a poorly dressed girl who insists she is a princess is given a difficult test by the Queen.When she passes the test, we learn that she is rewarded because she stayed true to herself.In “The Little Mermaid,” the mermaid(美人鱼)who lives under the sea longs to be with the humans on land.Through her experiences, we learn about the importance of living with and accepting other cultures.In “Pinocchio,” a wooden puppet(木偶)turns into a boy when he finally learns how to tell the truth. Teaching values is the reason most often given for teaching literature and encouraging reading.These old stories can indeed teach us lessons about human relationships that are universal(普遍的) enough to survive throughout the centuries.This might be the reason why they have been around for so long and are unlikely to disappear any time soon. 1.What do we learn about fairy tales from the passage？ _______ A.They are written solely for children B.They teach universal lessons about human relationships C.They are all passed down through songs and drama D.They are adapted to TV and movies as entertainment 2.Why do fairy tales have a positive influence on children？ A.Good and evil are presented in way they can easily understand B.The characters are all good examples for them to follow C.The heroes go through all kinds of hardships but never give up D.There are many different kinds of characters for them to imitate 3.Some of the heroes’ qualities in fairy tales have been changed over the years ________. A.to reflect the change of values B.to suit the tastes of different people C.to arouse the interest of little children D.to adapt to the change of the times 4.Children who have heard about the story of the little mermaid might ________. A.learn to be better self-disciplined B.be more likely to tell the truth than to tell lies C.learn to stay true to themselves all their lives D.be better able to accept foreign cultures 5.Parents encourage children to read fairy tales so that they ________. A.can entertain themselves without bothering others B.can get to know great literature of the world C.can stay away from violence shown on TV D.can learn how to behave in society

A、joint interest B、different points of view C、less emotional people D、advanced technology

We might ask whether the cost of advertising is paid for by the manufacturer or by the consumer.Since advertising forms part of the cost of production, which has to be covered by the selling price, it is clear that it is the customer who pays for advertising.However, if large scale advertising leads to increased demand, production costs are reduced, and the customer pays less. It is difficult to measure exactly the influence of advertising on sales.When the market is growing, advertising helps to increase demand.When the market is shrinking, advertising may prevent a bigger fall in scales than would occur without its support.What is clear is that businesses would not pay large sums for advertising if they were not convinced of its value to them. (1).Advertising is often used to (). A.convince customers B.promote production C.rise interest D.push the sales (2).According to the passage, trade fairs (Paragraph 1) may () . A.replace exhibitions and markets supply B.local goods and services C.attract possible customers D.provide cheap amusements (3).Advertising is in the main paid for by () . A.the customer B.the producer C.the increased sales D.the decreased costs (4).The author says that advertising can increase demand (). A.in any period of sales B.in any circumstances C.in a growing market D.in a shrinking market (5).What the last sentence of this passage actually tells us is that (). A.businessmen usually do not pay more for advertising than they have to B.businessmen know well that advertising could bring them more profits C.advertising couldn’t convince people of the value of the goods advertising usually costs D.businessmen large amounts of money