The experts we’ve spoken with recommend a medium-firm mattress for people with back pain, and that’s supported by existing research on sleep quality in people with low back pain.
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但如今互联网步入了AI时代，情况就变得有所不同。
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Cera, one of England's largest homecare providers, supports 2.5 million visits a month and says its AI system helps speed up hiring in a sector facing rising demand.