维生素D有防止坏血病和动脉硬化，改善延缓疲劳状况，促进创伤愈合，预防癌症的功能。
错误
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Motivationandpersonalitymay________thevaryingdegreesofsuccessinone’scareer.
Weshallcertainlycontactyou,assoonasweare____apositiontoentertainnewbusinessinyourdistrict.
翻译：WeshallbegladtoshipthegoodsbyadirectsteamertoVaneouverwithin30daysafterreeeiptofyouL/C.
JeanWagner’mostsenduringcontributiontothestudyofAfro-Americanpoetryishisinsistencethatit________inareligious,aswellasworldly,frameofreference.
NeitherEnglishnorChinese________difficulttolearn.