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
网友回答
A. came up
B. came out
C. came across
(答案→)D. came about
解析:考查动词短语辨析。A走进;发芽;B出版,发行;C遇见,发现;D形成,发生;句意:在波士顿马拉松终点发生的两次爆炸至少杀死了2个人,让180多人受伤,现在FBI遇见查明这一切是如何发生的。根据句意说明D正确。