更多"the need to consider all the elemen"的相关试题:
[填空题]Most people consider bacteria dangerous. After all, these microorganisms cause a host of serious human diseases, including tuberculosis, typhoid fever, pneumonia, and food poisoning. In fact, however, only a small percentage of bacteria cause diseases, while many bacteria are actually beneficial to humans. For example, doctors use bacteria to produce vaccines and other medicines. Bacteria are also critical to many industrial processes, from fermenting wine to recycling wastes, and scientists use bacteria to study many of the biological processes common to all living things.
With such a wide variety of economic and scientific applications, it is no surprise that several laboratories around the United States grow and sell bacteria as a crop. These laboratories use specialized farming techniques to produce one of the nation’s most valuable biological commodities.
Like plants, bacteria have specific growth requirements. In particular, they need a place to grow and they need
[填空题]The common elements in all styles of friendship include ______.
[单项选择]______main processes involved in virtually all manufacturing: extraction,assembly,and alteration.
A. There are three
B. Three
C. The three
D. Three of the
[单项选择]All experts agree that the most important consideration with diet drugs is carefully （ ） the risks and benefits.
A. weighing
B. valuing
C. evaluating
D. distinguishing
[单项选择]Customers need to consider carefully ______ kind of interior fittings will best satisfy both their needs and tastes.
A. which
B. since
C. that
D. as
[单项选择]We may all like to consider ourselves free spirits. But a study of the traces left by 50,000 cellphone users over three months has conclusively proved that the truth is otherwise.
"We are all in one way or another boring," says Alhert-László Barabási at the Center for Complex Network Research at Northeastern University in Boston, who co-wrote the study. "Spontaneous individuals are largely absent from the population."
Barabási and colleagues used three months’ worth of data from a cellphone network to track the cellphone towers each person’s phone connected to each hour of the day, revealing their approximate location. They conclude that regardless of whether a person typically remains close to home or roams far and wide, their movements are theoretically predictable as much as 93 per cent of the time.
Surprisingly, the cellphone data showed that individuals’movements were more or less as predictable at week ends as on weekdays, suggesting that routine is rooted
A. rely much on a cellphone in life
B. can live without a cellphone
C. act without much restraint
D. are boring in some way
[单项选择]All living things need air to live. People need clean air to breathe. But sometimes people make the air dirty. They drive so many cars that the fumes from the cars pollute the air.
Fumes are made when gasoline is burned. The fumes that come out of cars, buses and trucks can pollute the air.
Environmental engineers are people who work to protect the environment. One of their jobs is to design or plan cars that will not pollute the air. Some time ago environmental engineers designed an object for cars that removes harmful pollution. Now cars are causing less pollution than they once did, because environmental engineers worked hard to protect the environment.
______ has cleaner air.
A. Nowhere
B. The city
C. The countryside
