题目内容

吊拖时拖缆长度应大于被拖船拖缆出口至水面距离的:().

A. 8倍
B. 6倍
C. 4倍
D. 2倍

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具有J链结构的Ig是()

A. 单体IgA
B. IgIgE
C. IgIgD
D. SIgIgM
E. IgIgE

颌面部损伤时诊断颌骨骨折的主要体征是()和()

Which two of these are characteristics of MPLS VPNs? ()

A. Layer 3 MPLS VPNs can forward only IP packets
B. Layer 2 MPLS VPNs can forward any network protocol
C. MPL S label paths are automatically formed based on Layer 2 frames
D. Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames
E. In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policie

累加器A的内容是61H,执行RLA指令后累加器的内容变为()。

A. 0C2H
B. 0B0H
C. 30H
D. 31H

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