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Two explosions near the finish line of the Boston Marathon killed at least 3 peo

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Two explosions near the finish line of the Boston Marathon killed at least 3 peo

Two explosions near the finish line of the Boston Marathon killed at least 3 people and injured more than 180 others, and currently FBI has figured out how it __________.

A.came up

B.came out

C.came across

D.came about

试题答案

D

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