集团公司经营上的三次变革是（）。

A、工艺之变、计量之变、体制之变

B、战略之变、人才之变、规模之变

C、体制之变、战略之变、规模之变

-What do youknow about Mike?

-Well, he got married and ____in Australia.[ ]

A. settled down    

B.got down

C. took down                      

D. turned down