液相色谱配备荧光检测器的能测定以下哪几种项目()。
A、核苷酸
B、维生素B2
C、低聚果糖
D、氨基酸
参考答案:B
在一台Cisco路由器上执行show access-lists命令显示如下一组限制远程登录的访问控制列表信息 Standard IP access list 40 permit 167.1 12.75.89(54 matches) permit 202.113.65.56(12 matches) deny any(1581 matches) 根据上述信息,正确的access-list的配置是
A) Router(config ) # access-list 40 permit 167.112.75.89Router(config ) # access-list 40 permit 202.113.65.56Router(config ) # access-list 40 deny anyRouter(config ) # line vty 0 5Router(config-line ) # access-class 40 inB) Router(config ) # access-list 40 permit 167.112.75.89 logRouter(config ) # access-list 40 permit 202.113.65.56 logRouter(config ) # access-list 40 deny any logRouter(config ) # line vty 0 5Router(config-line ) # access-class 40 inC) Router(config ) # access-list 40 permit 167.112.75.89 logRouter(config ) # access-list 40 permit 202.113.65.56 logRouter(config ) # access-list 40 deny any logRouter(config ) # line vty 0 5Router(config-line ) # access-class 40 outD) Router(config ) # access-list 40 permit 167.112.75.89Router(config ) # access-list 40 permit 202.113.65.56Router(config ) # access-list 40 deny any logRouter(config ) # line vty 0 5Router(config-line ) # access-class 40 out
电机的滚动轴承损坏后,会出现()。
A、电机转速加快
B、电机转速变慢
C、泵效率升高
D、泵体震动