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A.practiced
B.administered
C.ordered
D.watched
答案
更多“Large doses have been for quite a long period of time.However，little is known about t”相关的问题
第1题
A.must be
B.has been built
C.must have been
D.could have been
第2题
A.assort
B.varieties
C.assortment
D.collections
第3题
Harry was ________ by a bee when he was collecting the honey.
A) stung B) stuck C) bitten D) scratched
第4题
A.Cycle Counting Method
B.Live method
C.Sampling method
D.Difference Posting procedure
第5题
Doses of radiation are measured in _______called "rems (雷姆 )".
[A] pieces
[B] units
[C] parts
[D] elements
第6题
Conventional computer models of the atmosphere have limited value in predicting short lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to study carefully the subtle atmospheric changes that come before these storms.In most nations, for example, weather – balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles.With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation intensive approach needed for accurate, very short – range forecasts, or “Nowcasts,” was not feasible.The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were hard to overcome.Fortunately, scientific and technological advances have overcome most of these problems.Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost.Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyze this large volume of weather information.Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly.As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.
11.The word “exceeded” in paragraph I most probably means ____________.
A.added up toB.were more than
C.were about D.were less than
12.Conventional computer models of the atmosphere fails to predict such a short – lived tornado because ______________.
A.the computer is not used to forecast specific local events
B.the computers are not advanced enough to predict it
C.the weather data people collect are often wrong
D.weather conditions in some small regions are not available
13.According to the passage, the word “Nowcast” (paragraph 3) means _______________.
A.a way of collecting raw weather data
B.a forecast which can predict the weather conditions in the small area in an accurate way
C.a network to collect instant weather data
D.a more advanced system of weather observation
14.According to the passage, ___________ is the key factor to making “Nowcasts” a reality.
A.scientific and technological advances such as radar, or satellites
B.computer scientist
C.meteorologists
D.advanced computer programs
15.According to the author, the passage mainly deals with ________________.
A.a tornado in Edmonton, Alberta
B.what’s a “Nowcast”
C.the disadvantage of conventional computer models of the weather forecast
D.a breakthrough in weather forecast
第7题
ans of advertising your sale is to place an ad in the local newspaper.If you have a city and neighborhood paper, make sure you advertise in both.The ad should be large enough that it stands out.It should also include information on where the sale is located with directions, the "hot" items you're selling and the time the sale will start and end.An ad should be placed at least two days before the sale and run until the day of your event.That way people can plan their route (路线)to the sale in advance.
Sig ns are another great way to inform. your community.Post them in places where people gather, such as stores and community centers.Some businesses have a central bulletin board (布告栏), which is the best place to advertise.Other places to post are at the loc al college or university campus.This is especially helpful if your sale is happening in August or early September when students have returned to school and are looking for cheap finds.
Post signs around your neighborhood.You should also place both ads a nd direction signs, especially if you're located on a side street without a major presence.Signs will attract and direct people.Just make sure you print in bold letters and use large direction signs so people can read the information from the front seat of their car.
1.The best way of getting out the news of your garage sale is to ().
A.publish the news online
B.visit people door-to-door
C.advertise in the local newspaper
D.make phone calls to your neighbors
2.You should place an ad at least two days before the sale so that people can ().
A.get enough cash for the sale
B.compare prices of the items
C.select the items they will buy
D.decide on their route in advance
3.Why should signs be po sted in a community center？()
A.Schools are nearby
B.There are many stores
C.Students often meet there
D.More people gather there
4.What advice is given for printing the signs according to the last paragraph？()
A.Colored signs are preferred
B.Bold letters should be used
C.Large pictures should be included
D.Phone numbers should be provided
5.The best title for the passage might be ().
A.Advertising Garage Sales
B.Advanta ges of Garage Sales
C.Importance of Garage Sales
D.Printing Ads for Garage Sales
第8题
The machine looked like a large, ___, old-fashioned typewriter.
A) forceful B) clumsy C) intense D) tricky
第9题
The machine looked like a large, ___, old-fashioned typewriter.
A) forceful B) clumsy C) intense D) tricky
第10题
ed typewriter.
A) forceful B) clumsy C) intense D) tricky
第11题
oven always attract large audiences.
(A) performing (C) to be performed
(B) performed (D) being performed
