题型:报关编码 女性,28岁。停经55天,伴恶心呕吐,妇科检查:子宫增大约妊娠50天,双侧附件(-)。该病例首选辅助检查是()。A.B超B.基础体温测定C.宫颈黏液检查D.血HCG检测E.黄体酮试验 查看答案
题型:报关编码 Mr Wang______an article on how to improve spoken English last month, but I don’t know whether he has finished it. A.has written B.wrote C.had written D.was writing 查看答案