设备管理的任务是:以()为核心,以降低企业运行维护成本为目标,对设备实施综合管理。
A、优化设备维护资源
B、优化企业资源
C、提高设备管理水平
参考答案:A
We should keep the habit of taking notes when the teacher _____. [ ]
A. will talk
B. would talk
C. is talking
D. talk
为何可以进行汽车拖挂运输?