题型:问答题 简答题 My new pen __________.Who __________ have taken it?A.has been disappeared; can B.has disappeared; could C.is missing; should D.has been lost; may 查看答案
题型:问答题 简答题 抗GBM病是一种免疫对抗肾小球基底膜哪一部分引起的疾病?()A.Ⅳ型胶原A4区B.Ⅳ型胶原α2链NCI区C.Ⅳ型胶原α4链NNI区D.Ⅳ型胶原α3链NCI区E.Ⅳ型胶原A3区 查看答案