56岁,男性,因多发关节肿痛23年来诊。还应做哪些检查()
A. (抗)角蛋白抗体
B. (抗)dsDNA抗体
C. 血沉
D. C反应蛋白
E. 类风湿因子
F. 抗0
G. 尿酸
HLAB27
I. (抗)CCP抗体
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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
具有J链结构的Ig是()
A. 单体IgA
B. IgIgE
C. IgIgD
D. SIgIgM
E. IgIgE
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