题型:填空题 微生物自动鉴定及药敏分析系统的维护应注意以下方面()A.严格按手册规定进行开、关机及各种操作B.定期清洁比浊仪、真空接种器、封口器、读数器及各种传感器C.定期校正比浊仪,用标准菌株测试各种试卡,并作好质控记录D.建立仪器使用以及故障和维修记录E.定期由工程师作全面保养,并排除故障隐患 查看答案
题型:填空题 Caunen Ferreira ______ up hope of finding her pet parrot, Raquel, who ______ from the back garden of her house two years ago.A.has given; was disappearedB.has given; had disappearedC.had given; was disappearedD.has given; disappeared 查看答案