句子写作：”HappyChristmas“hesaid.
“Happy Christmas “he said, smiling and picking out two flowers.
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Whataretheparagraphqualities?
Whatarethekeyfeaturesofaresearchpaper?
根据对患者人身造成的损害程度，医疗事故分为______
句子写作：Mypresentationseemedtogowell.
Howmanypartsisanarticleusuallycomposedof?Whatarethey?
