第6题: [单项选择]Where does the man want to post to A. New York. B. New Zealand. C. Washington. 参考答案:A 答案解析:[听力原文]8-9 M: How long does it take for a letter to get to New York W: It’ll take five or six
第27题: [单项选择]易患强直性脊柱炎的患者通常具有 A. HLA-DR2 B. HLA-DR3 C. HLA-DR4 D. HLA-DR5 E. HLA-B27 参考答案:E 答案解析:[解析] 强直性脊柱炎发病与遗传因素有密切关系,强直性脊柱炎的HLA-B27阳性率高达90%~96%,家族遗传阳性率达23.7%。