蒸馏自燃点较低的液体时，要保证设备的（）性，防止泄露自燃。
A.抗爆性
B.耐压性
C.严密性
参考答案：C
— I'm sorry I left my exercise book at home.
— Don't ______ it to school tomorrow, please. [ ]
A. forgot to take
B. left to bring
C. forget to bring
D. left to take
简述YB65型条盒包装机机械周保养重点检查部位。
