检修门、井道安全门及检修活板门均应向井道内开启，且应有用钥匙开启的锁。()
参考答案：错
One of the advantages of living on the top floor of a high-rise is that you can get a good _____. [ ]
A. sight
B. scene
C. view
D. look
无菌罐在升温时杀菌温度升不起来有哪些原因（）
A.主蒸气过滤器堵塞
B.无菌罐末端阀组疏水器坏
C.无菌罐蒸气减压阀坏
