题目内容
（请给出正确答案）
Why does it take long for people to change their food？
A． Because labs are not easily accessible to researchers.
B． Because some people are reluctant to accept the new diet.
C． Because food consumption is a culture of conservation.
D． Because some scientists are against the growing lab meat.
如果结果不匹配，请 联系老师 获取答案
更多“Why does it take long for peop…”相关的问题
根据以下内容回答题：
Why do you like someone？That person may not be great looking if you take a poll，but someone falls（1）him／her immediately．Why do this happen？What is the chemistry？Why do you find someone attractive？What is the（2）of that？Many love stories have been written around the love at first sight．The prince saw the princess and the princess saw the prince．Both（3）in love with each other forever．This is what romance is made（4）． What is this and how does this happen？You manage to lose your（5）；your thinking ability and your head．Your heart con-trols everythin9．You try every way possible to meet and win over that person．You pass sleep-less nights（6）of him／her．You are not able to live without that person for a moment.Much has been written about romantic love．No one has（7）any conclusion about how such love devclops．There are different theories about it，but can love be ever defined in terms of chemicals？Ultimately what will science achieve by（8）about how and why of such ro-mantic love that is heavenly？The best thing if you fall in（9）love is to preserve it carefully．（10）no circumstances，let anything happen to destroy it．It is very precious．Take care of it．
1.
A.for
B.at
C.on
D.down
All new employees, from vice-presidents to part-time workers, begin their employment by attending Disney University and taking the general training. Here, they learn about the company's history, how it is managed and why it is successful. They are shown how each department relates to the whole. All employees are shown how important their parts are in making the park a success.
After passing the general training, the employees go on to more specialized training for their specific jobs. No detail is missed. A simple job like taking tickets requires four eight-hour days of training. When one ticket taker was asked why it took so much training for such a simple and ordinary job, he replied, "what happens if someone wants to know where the restrooms are, when the parade starts or what bus to take back to the campground？ We need to know the answer or where to get them quickly. Our constant aim is to help our guests enjoy the party."
Even Disney managers get involved in the daily management of the park. Every year, the managers leave their desks and business suits and put on special service clothes. For a full week, the bosses sell hotdogs or ice cream, take tickets or drive the monorail, and take up any of the 100 jobs that make the entertainment park come alive. The managers agree that this week helps them to see the company's goals more clearly.
All these efforts to serve the public well have made Walt Disney Productions famous. Disney is considered by many as the best mass service provider in America or the world. As one long-time business observer once said, "how Disney treats people, communicates with them, rewards them, is in my view the very reason fir his fifty years of success… I have watched, very carefully and with great respect and admiration the theory and practice of selling satisfaction and serving millions of people on a daily basis successfully. It is what Disney does best.
The first day they come to Disney parks, all new employees ______.
A．begin by receiving on-the-job training
B．must learn several jobs
C．begin as ticket takers
D．have already attended Disney University
A prescription is as personal as your name. It is designed for you alone. It is based on such factors as your age, weight, general health, allergies (过敏症), and other factors, as well as your illness.
Never take a prescription drug meant for another person, even if you think you have the same illness. Prescriptions aren't supposed to be traded around the family or neighborhood. Each prescription is intended for an individual. It is a violation of federal law to sell a prescription drug without a prescription.
Doctors and dentists are licensed by each state to prescribe drugs for human use. Doctors for veterinary (兽医的) medicine are licensed to prescribe drugs for animal use.
A licensed medical doctor must pass all examination m practice medicine in a certain state. Before doing this, he or she has probably completed at least two years of a premedical course, a four-year medical course, two years of internship (实习) or residency in a hospital, and perhaps an extra year or more of training in a specialty -- altogether at least eight years of medical training, possibly nine.
Don't take prescriptions written for you during a previous illness without first checking with your doctor. Your illness may not be the same as the previous one, even though you think it is. Also the drug may have lost strength. Only a doctor is qualified to advise you about continuing to take a medicine.
Why does the law require that some drugs be used under a doctor's prescription？
A．Because they are not safe.
B．Because they need further special tests.
C．Because they are meant to cure serious diseases.
D．Because the prescription can ensure the safe use of the drugs.
It was Monday, Mrs. Smith's dog was hungry, but there was not any meat in the house.
Considering that there was no better way, Mrs. Smith took a piece of paper, and wrote the following words on it, "Give my dog half a pound of meat." Then she gave the paper to her dog and said gently, "Take this to the butcher (卖肉者) , and he's going to give you your lunch today."
Holding the piece of paper in its mouth, the dog ran to the butcher's shop. It gave the paper to the butcher. The butcher read it carefully, recognized that it was really the lady's handwriting and presently did as he was asked to. The dog was very happy, and ate the meat up immediately.
At midday (正午), the dog came to the shop again. It gave the butcher a piece of paper again. After reading it, he gave it half a pound of meat once more.
The next day, the dog came again exactly at midday. And as usual it brought a piece of paper in. the mouth. This time, the butcher did not take a look at the paper, and gave the dog its meat, for he had regarded the dog as one of his customers.
But, the dog came again at four o'clock. And the same thing happened once again. To the butcher's more surprise, it came for the third time at six o'clock, and brought with it a third piece of paper. The butcher felt a bit puzzled. He said to himself, "This is a small dog. Why does Mrs. Smith give it so much meat to eat today？"
Looking at the piece' of paper, he found that there were not any words on it!
Mrs. Smith treated her little dog quite ______.
A．cruelly
B．kindly
C．badly
D．unfairly
Droplets and ice crystals behave somewhat like dust in the air made visible in a shaft(束) of sunlight. To the casual observer, dust seems to act in a totally random fashion, moving about wildly without fixed direction. But in fact dust particles are much larger than water droplets and they finally fall. The cloud droplet of average size is only 1/2,500 inch in diameter. (78)It is so small that it would take sixteen hours to fall half a mile in perfectly still air, and it does not fall out of moving air at all. Only when the droplet grows to a diameter of 1/125 inch or larger can it fall form. the cloud. The average raindrop contains a million times as much water as a tiny cloud droplet. The growth of a cloud droplet to a size large enough to fall out is the cause of rain.
What is the main topic of the passage？
A．The mechanics of rain.
B．The climate of North America.
C．How gravity affects air current.
D．Types of clouds.
A.No, ask someone else
B.No way
C.By all means
D.Why should I
