26.Carrie Chapman Call was instrumental in passing the Nineteenth Amendment to

A B

the United States Constitution gives women the right to vote.

C D

27.Discovery in 1789and isolated from other element in 1841,uranium is valued as aA B C

source of atomic energy.

D

28.Ulysses S.Kay was among the United States composers visited the Soviet Union

A B

in 1958to participate in a cultural exchange program.

C D

29.Alaska is fame for tall mountains and beautiful scenery.

A B C D

30.True ferns have undergone remarkably little change during its long geological

A B

history,which extends back to the Devonian period.

C D