(Research shows) that employees (whose) obtain (satisfaction) from their jobs are more (productive).()

单项选择题(Whatever) is worth doing (at all) is worth (doing it) (well).()

A. Whatever
B. at all
C. doing it
D. well

单项选择题47()

A.Fortunately 
B.Infact 
C.Logically 
D.Unfortunately