The boy's bad behavior at school（）his parents as well as his teachers.

Sometimes punishment doesn't work and the boy （）another bad habit instead of behaving better

A． carries out

B． picks up

C． carries on

D． picks out

It’s bad _____ for you to smoke in the public places where smoking is not all

A behavior

B action

C manner

D movement

In software engineering and systems engineering,(71) is a description of a system's behavior. as it responds to a request that originates from outside of that system．

A．black box

B．business rule

C．use case

D．traceability matrix