They migrate thousands of kilometres to find stable sea ice during Antarctic summer to wait out what is called a "catastrophic moult" every year.
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It marks the latest in a series of changes to the way primary care services work. Last year the government ordered GPs to introduce online booking for non-urgent cases, which it said would solve the so-called "8am scramble" to get through on the phone.。爱思助手下载最新版本是该领域的重要参考
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