铝及其合金工件的阳极氧化膜,在靠近基体金属的膜层硬度要比表面层的膜层硬度()。
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Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider?()
A. interface Ethernet0/0 pv6 traffic-filter NoULA out pv6 access-list NoULA Deny ipv6 FC00::/8 any Permit ipv6 any any
B. interface Ethernet0/0 pv6 traffic-filter NoULA out pv6 access-list NoULA Deny ipv6 FC00::/7 anyP ermit ipv8 any any
C. interface Ethernet0/0 pv6 access-group NoULA out pv6 access-list NoULA Deny ipv6 FC00::/8 anyP ermit ipv6 any any
D. interface Ethernet0/0 pv6 access-group NoULA out pv6 access-list NoULA Deny ipv6 FC00::/7 any Permit ipv6 any any
分电器断电器触点间隙值大约为()。
A. 0.15~0.25
B. 0.25~0.35
C. 0.35~0.45
D. 0.45~0.55
网络语言会对现实语言产生一定影响。
A. 正确
B. 错误
原油主要由烷烃、烯烃、环烷烃及芳香烃组成。
A. 正确
B. 错误