【单选题】
A number of bags are worn-out()a certain extent.
A、at
B、in
C、on
D、to
A、at
B、in
C、on
D、to
A、bandwidth B、number of plug-ins per scan C、total number of network devices D、number of checks in each posture assessment
A、bandwidth B、number of plug-ins per scan C、total number of network devices D、number of checks in each posture assessment