A.To prevent car thieves from getting into your car.
B.To call for help when one's car crashes.
C.To call for help when the car gets jammed in the traffic.
D.To track the car down when it is being stolen.
第4题
槽下放料时应()。
A.先启动给料器,后启动振支筛
B.先启动振动筛,后启动给料器
C.同时启动
第8题
A.除尘系统完整,能达到环保要求
B.给料仓数量较多,能够满足配合比设计配料要求
C.具有添加纤维等外掺料的装置
D.拌和均匀
E.保温性能好的成品储料仓
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!