【单选题】选用已知的特异性抗体致敏载体以检测标本中的相应抗原,此为
【简答题】听下面一段材料,回答第1至3题。 1. What can we learn about the woman? [ ] A. She was ill. B. She didn't pass the exam. C. She likes watching the football match. 2. What did Mark do yesterday? [ ] A. He went ...
【单选题】稻瘟病的叶瘟,在不同环境条件和品种抗性下可产生急性型、慢性型、白点型、褐点型四种不同的症状类型。这种现象称为 ( )
【简答题】金黄色葡萄球菌作为载体的试验是A.间接凝集试验 B.反向间接凝集试验 C.间接凝集抑制试验 D.协同凝集试验 E.Coombs试验 抗体致敏载体检测抗原的试验是A.间接凝集试验 B.反向间接凝集试验 C.间接凝集抑制试验 D.协同凝集试验 E.Coombs试验 检测抗红细胞不完全抗体的试验是A.间接凝集试验 B.反向间接凝集试验 C.间接凝集抑制试验 D.协同凝集试验 E.Coombs试验 未出现...
【单选题】谷子红叶病在紫秆品种上表现为红叶,在青秆品种上表现为黄叶,这种现象叫( )
【简答题】句型转换。(每空1分,共10分) 小题1:Wendy saw a doctor on Sunday because she was ill.(同义句) Wendy saw a doctor on Sunday her illness. 小题2:There are some pears in the basket ,too.(同义句) There are some pears in the bask...
【简答题】根据你听到的句子选择正确的答语。 ( )1.A. She was ill. ( )2.A. Very much. ( )3.A. I walk to school. ( )4.A. What a good idea! ( )5.A. Thank you. B. Two months. B. Playing s. B. About four kilom...
【单选题】棉花红腐病在苗期表现为根茎部变粗变褐症状,而在铃期表现为烂铃症状,这种现象称为 ( )