-He seems to be a good teacher .

- _____ . He has been a teacher for 20 years.

A．So does he

B．So he does

C．So is he 　　

D．So he is

下表是日常生活中我们常见的能量转化的实例，请找出它们的对应关系．

〔左列〕〔右列〕

A．干电池                         a．化学能转变为光能

B．燃气热水器                     b．化学能转变为电能

C．电解水                         c．光能转变为电能

D．太阳能电池                     d．光能转变为化学能

E．光合作用                       e．化学能转变为热能

F．可燃物燃烧用于照明             f．电能转变为化学能．