单项选择题

The United States court system is characterized by（）hierarchies: there are both state and federal courts.

A. double
B. complex
C. simple
D. dual

<上一题 目录 下一题>
热门 试题

单项选择题
The organization has so far raised $2.5 million to finance bone ______ trans-plants for children.
A. marrow
B. moron
C. mussel
D. mire
单项选择题
She does not believe that he is the honor accorded him（）

A．worth of
B．worth
C．worthy of
D．worthy
相关试题