亚硝酸盐及硝酸盐检测统一要求:玻璃纤维长度()。
A、2-3mm
B、1-2cm
C、2-3cm
D、1-2mm
参考答案:C
“You can’t judge a book by its cover,” .
A.as the saying goes old
B.goes as the old saying
C.as the old saying goes
D.goes as old the saying
下列灭菌法能杀死带芽孢细菌的有()
A.1∶1000新洁尔灭浸泡4小时
B.蒸笼灭菌法,水沸后持续2小时,每天1次,连续3天
C.1∶1000新洁尔灭浸泡,30分钟
D.高压蒸汽消毒125℃持续30分钟
E.煮沸消毒持续60分钟