Acetate is one of the most important artificial fibers.

单项选择题New England town meetings, in their most highly developed form, are assemblies of the voters.

单项选择题Gooseneck barnacles attach themselves to objects such as docks and boats.

单项选择题Located in Washington, D.C., the Library of Congress contains an imposing array of books on every conceivable subject.

单项选择题The Railway Labor Mediation Act of 1926 supported the use of collective bargaining to avert interruption of rail service.

单项选择题Winston became quite avaricious in his late life.