Presidents since have evaluated

.

D

17.The Armory Show,held

in New York in 1913,was a

important exhibition

of

A B C

modern

European art.

D

18.Ripe fruit is often stored in a place who contains much carbon dioxide so that the

A B C

fruit will not decay too rapidly.

D

19.In 1852,Massachusetts passed a law requiring all children from four to eighteen

A B C

years of old to attend school.

D

20.The main purpose of classifying animals is to show the most probable

A B

evolutionary relationship of the different species to each another.

C D

21.Matthew C.Perry,a United States naval commander,gained fame not in war and

A B C

through diplomacy.

D

22.One of the most impressive collections of nineteenth-century European paintings

A B

in the United States can be found to the Philadelphia Museum of Art.

C D