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英语证书考试
大学英语考试
全国英语等级考试(PETS)
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阅读理解Micro-wear patterns found on the teeth of
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阅读理解Determining whether a given population of
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阅读理解A key decision required of advertising managers
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阅读理解Suppose we were in a spaceship in free fall,
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单选题What are the factors of 60?
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单选题When 66, 90, 150 are divided by the positive integer n respectively, they have the same remainder, which of the following could be the largest value of n?
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单选题If 2x + 5y = 8 and 3x = 2y, what is the value of 2x + y?
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单选题A school supply store sells only one kind of desk and one kind of chair,at a uniform cost per desk or per that of 1 desk and 3 chairs.then the total cost Of 4 desks and 1 chair is how many times that
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单选题Bowls X and Y each contained exactly 2 jelly beans, each of which was either red or black.One of the jelly beans in bowl X was exchanged with one of the jelly beans in bowl Y, After the exchange.were
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单选题The cardinality of a finite set is the number of elements in the set.What is the cardinality of set A? 1 2 is the cardinality of exactly 6 subsets of set A. 2 Set A has a total of 16 subsets.including
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单选题In order to reduce dependence on imported oil,
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单选题If kSn is defined to be the product of n + kn - k + 1 for all positive integers k and n, which of the following expressions represents k + 1Sn+1 +1?
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单选题100个连续自然数按从小到大的顺序排列的和为8450,取出其中第1个,第3个,…,第99个,再把剩下的数相加,和为多少?
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单选题Which of the following most logically completes
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单选题Is the perimeter of triangle ABC greater than 20?1BC-AC=102the area of tangle ABC is 20.
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单选题If 1 2
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单选题The use of growth-promoting antibiotics in hog
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单选题For over two centuries, no one had been able to
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单选题A computer equipped with signature-recognition
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