O型血清与AB型红细胞相遇时
A.红细胞膜正常B.发生凝集反应C.发生血液凝固D.出现红细胞肿胀
参考答案:B
在残留消毒剂的去除方法中,最适合采用过滤冲洗法的消毒剂为()
A.戊二醛
B.乙醇
C.植物提取物制备的消毒剂
D.次氯酸钠
E.聚维酮碘(碘伏)
My parents ______ born in Shanghai, but I ______ born in Nanjing.[ ]
A. was, was
B. were, was
C. were, were
D. are, am