产品定位的三种策略？

下列有关实验现象的描述正确的是（　　）

A．将盐酸滴入氢氧化钠溶液中，有沉淀产生

B．氯化铜溶液中滴入氢氧化钠溶液，产生蓝色沉淀

C．四氧化三铁放入氢氧化钠溶液中，生成红褐色沉淀

D．将少量二氧化碳通入氢氧化钠溶液中，会产生白色沉淀

患者，男性，21岁，下面部进行性右侧偏斜4年，咬功能紊乱，右侧关节曾出现阵发性弹响，下颌曲面体层片显示左侧髁突颈部伸长，颌面部骨核素扫描显示左侧髁突影像较对侧浓集。该患者诊断为（）

A.左颞下颌关节肿瘤

B.右颞下颌关节肿瘤

C.右髁突肥大

D.左髁突肥大

E.以上均不对

阅读理解

     There are many American expressions about insects-like bees, for example. Bees always appear

to be busy, moving around their homes, or hives. In fact, you might say your house was a beehive of

activity if your whole family was helping you clean. You also might say you made a beeline for

something if you went there right away.

     Here is an expression about bees that is not used much any more, but we like it anyway. We think

it was first used in the nineteen twenties. If something was the best of its kind, you might say it was the

bee's knees. Now, we admit that we do not know how this expression developed. In fact, we do not

even know if bees have knees!

     If your friend cannot stop talking about something because she thinks it is important, you might say

she has a bee in her bonnet. If someone asks you a personal question, you might say "that is none of

your beeswax". This means none of your business.

     Speaking of personal questions, there is an expression people sometimes use when their children

ask, "where do babies come from?" Parents who discuss sex and reproduction say this is talking about

the birds and the bees.

     Hornets are beelike insects that sometimes attack people. If you are really angry, you might say you

are mad as a hornet.

     Butterflies are beautiful insects, but you would not want to have butterflies in your stomach. That

means to be nervous about having to do something, like speaking in front of a crowd. You would also

not want to have ants in your pants. That is, to be restless and unable to sit still.

1. When Tom spends his weekend cleaning his house, we can say he is as busy as ________.

A. an insect              

B. a hornet              

C. a butterfly                

D. a bee

2. Which of the following expressions can NOT be often heard in daily life?  

A. Make a beeline.

B. That is none of your beeswax.

C. It's the bee's knees.

D. My house is a beehive of activity.

3. When you say to Mary "you have a bee in your bonnet", what do you really mean?

A. She should stop talking about something.

B. You care about her very much.

C. She is in danger and needs help.

D. What she talks about is really important

4. Which of the following would be discussed next?   

A. Some expressions about pigs.

B. Some expressions about noses.

C. Some expressions about bugs.

D. Some expressions about colours.

阅读理解

     If cars had wings,they could fly and that just might happen, beginning in 2012.The company

Terrafugia, based in Woburn, Massachusetts, says it plans to deliver its carplane, the Transition,

to customers by the end of 2012.

     "It's the next 'wow' vehicle,"said Terrafugia vice president Richard Gersh. "Anybody can buy

a Ferrari, but as we say, Ferraris don't fly."

     The car plane has wings that unfold for flying-a process the company says takes one

minute-and fold back up for driving. A runway is still required to take off and land.

     The Transition is being marketed more as a plane that drives than a car that flies, although it is

both. The company has been working with FAA to meet aircraft regulations, and with the National

Highway Traffic Safety Administration to meet vehicle safety regulations.

     The company is aiming to sell the Transition to private pilots as a more convenient and cheaper

way to fly. They say it saves you the trouble of trying to find another mode of transportation to get

to and from airports: You drive the car to the airport and then you're good to go. When you land,

you fold up the wings and hit the road. There are no expensive parking fees because you don't have

to store it at an airport-you park it in the garage at home.

     The carplane is designed to fly primarily under 10,000 feet. It has a maximum takeoff weight of

1,430 pounds, including fuel and passengers. Terrafugia says the Transition reduces the potential for

an accident by allowing pilots to drive under bad weather instead of flying into marginal(临界)

conditions.

    The Transition's price tag: $194,000. But there may be additional charges for options like a radio,

transponder or GPS. Another option is a fullplane parachute.

     "If you get into a very awful situation, it is the necessary safety option," Gersh said.

      So far, the company has more than 70 orders with deposits. "We're working very closely with

them, but there are still some remaining steps," Brown said.

1. We can learn from the first paragraph that________. 

A. carplanes will be popular in 2012

B. people might drive a carplane in 2012

C. both Transition and Ferrari can take off and land

D. Richard Gersh is the vice president of Massachusetts

2. It takes the carplane one minute to________.

A. fold and unfold its wings          

B. unfold wings for flying

C. land in the airport                

D. meet flying safety regulations

3. According to the passage, which of the following is NOT true? 

A. The carplane needs a runway to take off and land.

B. To meet aircraft regulations, the company has been working with FAA.

C. The carplane may fly as high as normal planes.

D. People can park the carplane in the garage at their home.

4. The underlined word "it" in the last but one paragraph refers to________.

A. the radio    

B. the transponder      

C. the GPS    

D. the fullplane parachute

5. What's the best title for the passage? 

A. Cars With Wings May Be Just Around The Corner

B. Which To Choose: A Ferrari Or A CarPlane?

C. A More Convenient And Cheaper Way To Fly

D. Cars With Wings Can Fly As Fast As Plane

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C.用户可拨打客服热线选号入网

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