1 . Many young people, most of ________ are well-educated, are struggling to find a job after graduation.（用适当的词填空）

2 . Today we focus on _____ is called recurrent obesity (复发性肥胖) or yo-yo obesity (溜溜球式肥胖), _____ is the phenomenon _____ we gain weight and then go on a successful diet, but within 12 months we go back to our original weight.

A．what; which; in which	B．which; which; where
C．all; that; that	D．whatever; as; which