The author indicates in the text that public duty stresses______.
A．a necessary kind of craftiness to succeed
B．the recognition of an official duty of every citizen
C．a certain attention to details which may involve much sacrifice
D．a recognition that you should gain nothing from it personally

A.
A．a
B.the
C.a
D.a

【参考答案】

C
属事实细节题。第三段明确指出，公共义务往往要求劳心费神和各种付出。