Which four of these statements are restrictions for Frame Relay PVC bundles with QoS support for IP and MPLS？ （） A PVC bundle will not come up unless all the precedence， DSCP， and EXP levels are configured in thebundle.。 A PVC bundle can perform precedence and DSCP matching at the same time。 A PVC bundle may contain no more than sixteen PVCs。 A PVC can be in only one PVC bundle。 A PVC bundle cannot perform precedence and DSCP matching at the same time.。 A PVC bundle may contain no more than eight PVCs.。
When creating a role in a Cisco Nexus 7000 Series Switch， rules are used to define the type of operations that a role will allow the user to perform. Which two of these parameters cannot be applied as a rule？ （） port-profile。 command。 access-list。 feature-group。 OID。
身体素质的核心内容是（），其水平会对身体素质、生理机能及机体适应能力产生影响，并且伴随身体素质、生理机能及机体适应能力的变化而变化，所以身体素质锻炼就是通过它的锻炼来实现。 个体素质。 先天素质。 后天素质。 运动素质。
排气管冒白烟的原因有哪些？
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新鲜纯净的乳略带甜味，是因为乳中含有（）
