律師來函,要求準備下述材料:Adults born after 1956 must show evidence of immunization against:a. Adult tetanusb. MMR (measles, mumps, rubella vaccine)c. Varicella (chicken pox)問1:應如何準備才好? 我們1970's 出生的人沒有國內打疫苗的記錄.問2:a) b) c)不知中文是什麽意思?Thanks very much!