Why does the news item say Omicron is "pulling the fire alarm"?

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问题 Why does the news item say Omicron is "pulling the fire alarm"?

Vaccine makers are racing to make changes to their COVID-19 shots. They hope to make sure their vaccines are effective against the newest coronavirus threat. Even before it is clear, a change is needed. Experts doubt that current COVID-19 vaccines will become useless, but they say it is crucial to see how fast companies can produce a new vaccine and prove it works. The newest version of the virus, Omicron appeared just a few weeks ago, but scientists know, it will not be the last. Omicron is pulling the fire alarm.

选项 A、It warns that new versions of coronavirus keep appearing.
B、It reminds people that COVID-19 should be taken seriously.
C、It calls for the production of more COVID-19 vaccines.
D、It urges people to take COVID-19 vaccines in time.

答案A

解析根据新闻可知，病毒的最新变种奥密克戎几周前才出现，但科学家们知道，这不会是最后一次，奥密克戎“拉响了火警”。也就是说，病毒变异体会持续出现，故选A。

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本试题收录于： C类竞赛（非英语专业本科）题库大学生英语竞赛（NECCS）分类

C类竞赛（非英语专业本科）

大学生英语竞赛（NECCS）

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Why does the news item say Omicron is "pulling the fire alarm"?

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