In total, some 5,000 people work in Antarctica during its summer months, across 80 research stations operated by about 30 countries.
In rare cases chicken pox can cause a swelling of the brain, called encephalitis; an inflammation of the lungs, called pneumonitis; and stroke, which can result in hospitalisation and - very rarely - death.，详情可参考WPS下载最新地址
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Not the day you're after? Here's the solution to yesterday's Wordle.