GivenaclassRepetition：Whichcodeshouldbeinsertedatline1ofDemo.javatocompileandrunDemotoprint"pizzapizza"？（）

A．Client？falls？asleep？while？the？nurse？is？talking B．Client？frequently？scratches？due？to？pruritus C．Client？has？third？emesis？since？taking？medication D．Monitor？reveals？one？premature？ventricular？contraction E．Pulse？oximeter？shows？oxygen？saturation？is？90%

A．A.The PTN equipment supports 1+1 unidirectional path protection and 1:1 bidirectional path protection. B．B.1:1 bidirectional path protection supports return mode and non-return mod C．C.The protection delay can be configured to be 0-10 s (with the step length of 100 ms). D．D.In the return mode, WTR can be configure to be 1-12 min (with the step length of 1 min).

A. R1 has been configured with an ip default- network 2.0.0.0 command. B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command. C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command. D. Another router has been configured with an ip default - network 2.0.0.0 command. E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.