The parents of a child being discharged from the day surgery center after insertion of tympanostomy tubes ask the nurse. "What will happen to the tubes in my child's ears" Which of the following would be the nurse's best response

A．"The tubes usually dissolve on their own in about 1 year. "

B．"The tubes must remain permanently in place. "

C．"You'll probably see them fall out in about 6 months. "

D．"Call for an appointment to have them removed in about 6 months. "

对企业来说，培训的长期目标是：（）

A.企业的效益和发展

B.企业的规划和愿景

C.企业潜力和运营

D.企业文化的建设和改变