更多"Why does Denny have to go unarmed"的相关试题:
[单项选择]
Why does cream go bad faster than butter Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition — a finding that could help rid some processed foods of chemical preservatives.
Cream and butter contain pretty much the same substances, so why cream should sour much faster has been a mystery. Both are emulsions — tiny globules (小球) of one liquid evenly distributed throughout another. The difference lies in what’s in the globules and what’s in the surrounding liquid, says Brocklehurst, who led the investigation.
In cream, fatty globules drift about in a sea of water. In butter, globules of a watery solution are locked away in a sea of fat. The bacteria which make the food go bad prefer to live in the watery regions of the mixture. "This means that in cream, the bacteria are free to grow throughout the mixture," he says.
When the situation is reversed, the bact
A. it suggested a way to keep some foods fresh without preservatives
B. it discovered tiny globules in both cream and butter
C. it revealed the secret of how bacteria multiply in cream and butter
D. it found that cream and butter share the same chemical composition
[单项选择]Why does Harvey Coleman have these "Ridiculous belief"
A. He is an ironical person.
B. He was mistreated by someone in authority.
C. He has the privilege of experiencing those procedures him self.
D. He is one of the minorities.
[单项选择]Why does Ronald Reagan have to suffer permanent injury of heating Because _______.
A. his tight ear has been damaged
B. his nerve system is inefficient
C. there is some problem with his brain
D. some of the delicate hairs in his inner ear have suffered a great damage
[单项选择]Why does Volvo want to have women designers and engineers
[单项选择]Why does the honest public have to pay higher prices when they go to the shops
A. There is a "shrinkage" in market values.
B. Many goods are not available.
C. Goods in many shops lack variety.
D. There are many cases of shop-lifting.
[单项选择]Why does the author think women usually have a poor self-concept of themselves
A. because most of them work at home.
B. Because most of them have little schooling.
C. Because most of them are less competent than men.
D. Because their work is rarely praise
[单项选择]The hotel is not very modern, but it does have the______ of being close to the city centre.
A. chance
B. interest
C. advantage
D. charge
[单项选择]______ does your mother go shopping
[单项选择]Hardly does a week go by without news reports of some new records.
A. 几乎没有一个星期没有新的记录报道。
B. 几乎一个星期还没有过去就没有了新的记录。
C. 几乎每个星期都有一些新的记录的报道。
D. 没有新的记录的报道，一个星期就过去了。
[单项选择]How does a man go shopping when he wants to buy something
A. He will often ask help from the shop assistant.
B. He will look at it carefully and wait for a while.
C. He has made a plan before he wants to buy it.
D. He will discuss it with his wife and then buy it.
[单项选择]Does the earth go ______ the sun
[单项选择]What problems does sport have
A. Some women athletes are actually men.
B. Women or men do not run or swim in the same races.
C. It is difficult to check whether women athletes are really women.
D. Some women Athlete are given hormone injections.
[单项选择]______ does Mr Robinson go to London on business
A. How many
B. How long
C. How often
D. How usually
[单项选择]Why does the author say "Ricke doesn't have a lot of time"
[单项选择]Which of the following does not explain why the whites took land from the reservation
A. It had important minerals in it.
B. They wanted to make national parks them.
C. They needed more land for new immigrants.
D. They wanted the wood.
