14.Written to be performed on a _____,Thornton Wilder's play Our Town depicts life in a small New England community.

(A)stage scenery of bare(B)bare of stage scenery

(C)scenery bare of stage

(D)stage bare of scenery.

15._____ many copper mines in the state of Arizona,a fact which contributes significantly to the state's economy.

(A)They are

(B)There are

(C)Of the

(D)The

16.A food additive is any chemical that food manufactures intentional add to their

A B C

products.

D

17.Margaret Mead studied many different cultures,and she was one of the first

A B C

anthropologists to photograph hers subjects.

D

18.Talc,a soft mineral with a variety of uses,sold is in slabs or in powdered from.

A B C D

19.During the 1870's iron workers in Alabama proved they could produce iron by

A B

burning iron ore with coke,instead than with charcoal.

C D

20.Geologists at the Hawaiian Volcano Observatory rely on a number of instruments

A B C

to studying the volcanoes in Hawaii.

D

21.Underlying aerodynamics and all other branches of theoretical mechanics are the

A B C

laws of motion who were developed in the seventeenth century.

D

22.Was opened in 1918,the Phillips Collection in Washington,D.C.,was the first

A B

museum in the United States devoted to modern art.

C D

23.A mortgage enables a person to buy property without paying for it outright;thus

A B C

more people are able to enjoy to own a house.

D

24.Alike ethnographers,ethnohistorians make systematic observations,but they also

A B C

gather data from documentary and oral sources.

D

25.Basal body temperature refers to the most lowest temperature of a healthy

A B C

individual during waking hours.

D

26.Research in the United States on acupuncture has focused on it use in pain reliefA B C D

and anesthesia.

27.The Moon's gravitational field cannot keep atmospheric gases from escape into

A B C

space.

D

28.Although the pecan tree is chiefly value for its fruit,its wood is used extensivelyA B C

for flooring,furniture,boxed,and crates.

D

29.Born in Texas in 1890,Katherine Anne Porter produced three collection of shortA B

stories before publishing her well-known novel Ship of Fools in 1962.

C D

30.Insulation from cold,protect against dust and sand,and camouflage are among the

A B C

functions of hair for animals.

D

31.The notion that students are not sufficiently involved in their education is one A B

reason for the recently surge of support for undergraduate research.

C D

32.As secretary of transportation from 1975to 1977,William Coleman worked to help A B

the bankrupt railroads in the northeastern United States solved their financial problems.

C D

33.Faults in the Earth's crust are most evidently in sedimentary formations,whereA B C

they interrupt previously continuous layers.

D

34.Many flowering plants benefit of pollination by adult butterflies and moths.

A B C D

35.A number of the American Indian languages spoken at the time of the European

A B C

arrival in the New World in the late fifteen century have become extinct.

D

36.George Gershwin was an American composer whose concert works joined the

A B

sounds of jazz with them of traditional orchestration.

C D

37.One of the problems of United States agriculture that has persisted during the

A B

1920's until the present day is the tendency of farm income to lag behind the costs of

C

production.

D

38.Volcanism occurs on Earth in several geological setting,most of which are

A B

associated with the boundaries of the enormous,rigid plates that make up the

C D

lithosphere.

39.Early European settlers in North America used medicines they made from plants nativeA B C

to treat colds,pneumonia,and ague,an illness similar to malaria.

D

40.Some insects bear a remarkable resemblance to dead twigs,being long,

A B

slenderness,wingless,and brownish in color.

C D