2. 外语
  3. Scientists are______certain that there is a cancer — inhibiting agent in the blood of the shark.

Scientists are______certain that there is a cancer — inhibiting agent in the blood of the shark.

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问题 Scientists are______certain that there is a cancer — inhibiting agent in the blood of the shark.
选项 A、dubiously
B、virtually
C、queerly
D、randomly
答案B
解析 B选项“virtually几乎，事实上，实际上”符合题意，如：The city was virtually paralyzed by the transit strike．(这个城市实际上已陷于交通运输罢工的瘫痪状态.)其他三项“A选项dubiously怀疑地；C选项queerly奇怪地；D选项randomly随机地，无目的地”都不正确，这三个词在语义上都无法与certain搭配。本题空格处是说几乎确信无疑。
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