2. 外语
  3. They were _______ in their scientific research, not knowing what happened just outside their lab.

They were _______ in their scientific research, not knowing what happened just outside their lab.

admin2012-05-18  19
问题 They were _______ in their scientific research, not knowing what happened just outside their lab.
选项 A、submerged
B、immersed
C、dipped
D、drowned
答案B
解析 B．immersed意为“陷入(债务，沉思)，专心于”，常与介词in搭配。其他三个动词的意义是：A. submerge淹没，浸没；C．dip浸，蘸；D．drowned溺水，淹死。根据句意应选B。句意为：他们都埋头于他们的科学实验，不知道实验室外面发生的事情。
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大学英语六级

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