冷冻、冷藏设备应放置在冷菜间或其附近。( )
参考答案:错
解析: 冷冻、冷藏设备应放置在平坦坚实的地面上,远离热源,保持设备所处环境干燥、通风,避免阳光直射。
All the preparations for the task ___,and we're ready to start. [ ]
A. completed
B. complete
C. had been completed
D. have been completed
载脂蛋白B的测定选用 ()
A.一点终点法
B.两点终点法
C.固定时间两点法
D.连续监测法
E.透射比浊法