防撕列保护装置的作用就是当带式输送机发生胶带()撕裂事故时,及时控制带式输送机停机防止撕裂事故扩大。
参考答案:纵向
–I’m hungry. ______ there any bread in the fridge, Mum?
–None, but we have cakes. Would you like to have one?
A. Is B. Are C. Will
融易通三星主卡年费为()元
A、50元
B、100元
C、150元
D、200元