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16. A children's librarian often conducts story hours and other activities to help children
A B
enjoy herself while developing an interest in reading and the library's resources.
C D
17. Titanium has the strength of steel but weighs half only as much, hence its advantage
A B C
for use in aircraft.
D
18. Protective behaviors of amphibians include hiding in the presence of danger and
A B
having coloration such closely matching the environment that the animal is not obvious.
C D
19. As the highest-paid star of the silent screen, earning a reputedly income of $20, 000
A B C
a week, Gloria Swanson epitomized the glamour of Hollywood in the 1920's.
D
20. Candles may be made by repeatedly dipping wicks in tallow, by molding, nor by
A B
pouring melted wax over the wicks and rolling them into shape.
C D
21. While models of automobiles date back as far as the late 1600's, the 1880's
A B
seen the first commercial interest in the vehicle.
C D
A B
enjoy herself while developing an interest in reading and the library's resources.
C D
17. Titanium has the strength of steel but weighs half only as much, hence its advantage
A B C
for use in aircraft.
D
18. Protective behaviors of amphibians include hiding in the presence of danger and
A B
having coloration such closely matching the environment that the animal is not obvious.
C D
19. As the highest-paid star of the silent screen, earning a reputedly income of $20, 000
A B C
a week, Gloria Swanson epitomized the glamour of Hollywood in the 1920's.
D
20. Candles may be made by repeatedly dipping wicks in tallow, by molding, nor by
A B
pouring melted wax over the wicks and rolling them into shape.
C D
21. While models of automobiles date back as far as the late 1600's, the 1880's
A B
seen the first commercial interest in the vehicle.
C D