At the age of 29, Dave was a worker, ________ in a small apartment near Boston and ________ what to do about his future.

A．living; wondering

B．lived; wondering

C．lived; wondered

D．living; wondered

注册税务师为纳税人、扣缴义务人设计依法合理纳税方案，对每一种方案的税收负担率进行测定，选择税负较轻的方案，这种方法称为( )。

A．比较费用筹划

B．比较成本筹划

C．比较效益筹划

D．比较税负筹划