The world"s governments have done ________. nothing to combat the threat of nuclear accidents.A. inherentlyB. vitallyC. virtuallyD. identically

本题考查词汇辨析，解题思路是理解每个选项单词的含义，再结合句子语境来判断哪个选项能使句子语义通顺合理。

• A选项“inherently”：意为“固有地；内在地”。例如：Some animals are inherently more aggressive than others.（有些动物天生比其他动物更具攻击性。）将其代入句子 “The world's governments have done inherently nothing to combat the threat of nuclear accidents.” 中，语义不通，所以A选项不符合。
• B选项“vitally”：意思是“至关重要地；生死攸关地”。比如：Exercise is vitally important for good health.（锻炼对健康至关重要。）把它放进句子 “The world's governments have done vitally nothing to combat the threat of nuclear accidents.” 里，句子逻辑不成立，故B选项不正确。
• C选项“virtually”：有“几乎；实际上”的意思。句子 “The world's governments have done virtually nothing to combat the threat of nuclear accidents.” 表达的是世界各国政府实际上几乎没有采取任何措施来应对核事故的威胁，语义通顺合理，所以C选项正确。
• D选项“identically”：表示“相同地；同样地”。例如：The two buildings are identically designed.（这两座建筑物的设计完全相同。）将其用于句子 “The world's governments have done identically nothing to combat the threat of nuclear accidents.” 中，不符合句子表达的逻辑，因此D选项不合适。