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