Just as a book is often judged ______ by the quality and appearance of its cover, a person is judged immediately by his appearance.

A．outwardly

B．initially

C．uniquely

D．previously

与复式税则相比，单式税则（）

A.又称二栏税则

B.只适用于享有最惠国待遇的国家

C.被大多数发展中国家采用

D.不利于实行差别待遇