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提问人：网友lovelucky8 发布时间：2022-01-06

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The 4 beads in a bag are identical except that 2 are red and 2 are blue. If 2 beads are to

be simultaneously and randomly selected, what is the probability that they will both be blue？

A．1/6

B．1/4

C．1/3

D．1/2

E．5/6

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更多“The 4 beads in a bag are identical except that 2 are red and 2 are blue. If 2 beads are to”相关的问题

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The grasslands and deciduous forest climates are similar except that the former receives __________ rainfall.

A、least

B、few

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第2题

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B．6

C．7

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第4题

Water is to be poured at a rate of 2. 5 gallons per minute into a 500-gallon tank that initially contains 50 gallons of water.

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The percent of the tank's capacity that 60 percent

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to be poured in

A．if the quantity in Column A is greater

B．if the quantity in Column B is greater

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第5题

Sixty-eight people are sitting in 20 cars and each car contains at most 4 people. What is the maximum possible number of cars that could contain exactly 1 of the 68 people？

A．2

B．3

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第6题

At 9:00 a. m. train T left the train station and two hours later train S left the same station on a parallel track. If train T averaged 60 kilometers per hour and train S averaged 75 kilometers per hour until S passed T, at what time did S pass T？

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B．5:00 p.m.

C．6:00 p.m.

D．7:00 p.m.

E．9:00 p.m.

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