电磁流量计的测量管必须在任何时候都是完全注满介质的。()
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车间生产作业计划就是规定车间及其内部生产环节在单位时间内的生产任务计划。
A. 正确
B. 错误
在机械制图中选用规定的线型,虚线是用于()线,中心线、对称线就用()线。
What are two enhancements that OSPFv3 supports over OSPFv2? ()
A. It requires the use of AR
B. It can support multiple IPv6 subnets on a single link.
C. It supports up to 2 instances of OSPFv3 over a common link.
D. It routes over links rather than over networks.