英语四级
A．step by step
B．among Black Americans
C．between Black Americans and their white counterparts
D．between Black Americans and other American minorities
【解析】选[A]。文窜末段首句说social change is easier if it is gradual，[A]中的step by step是对gradual的同义转述。原文提到Black Americans是对it comes more readily in human relations on a continuous scale rather than one with violent changes的举例说明，[B]、[C]、[D]都不符合原文。
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A．the necessity of social change
B．certain factors that determine the ease with which social change occurs
C．the way to slow down social change
D．how to promote social change
During McDonald's early years French fries were made from scratch everyday. Russet Burbank potatoes were 1 ,cut into shoestrings, and fried in its kitchens. 2 the chain expanded nationwide, in the rnid-1960s, it sought to 3 labor costs, reduce the number of suppliers, and 4 that its fries tasted the same at every restaurant. McDonald's began 5 to frozen French fries in 1966 -- and few customers noticed the difference. 6 , the Therefore change had a profound effect on the nation's agriculture and diet. A familiar food had been 7 into a highly processed industrial 8 . McDonald's fries now come from huge manufacturing plants that can process two million pounds of potatoes a day. The expansion 9 McDonald's and the popularity of its low-cost, mass-produced fries changed the 10 Americans eat.
The taste of McDonald's French fries played a 11 role in the chain's success -- fries are much more 12 than hamburgers -- and was 13 praised by customers, competitors, and even food critics. Their 14 taste does not stem from the kind of potatoes that McDonald's 15 , the technology that processes them, or the restaurant 16 that fries them: other chains use Russet Burbank, buy their French fries from the 17 large processing companies, and have similar 18 in their restaurant kitchens. The taste of a French fry is 19 determined by the cooking oil. For decades McDonald's cooked its French fries in a mixture of about 93 percent cotton seed oil and 7 percent beef fat. The mixture gave the fries their unique 20 .
A．scaled
B．stripped
C．peeled
D．sliced
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