（ ）began the rise of the United States as a world power.
A、The War of 1812
B、The Spanish-American War
C、World War I
D、The Civil War
【正确答案】：B
【题目解析】：The island of Puer-to Rico has been an American possesion since the Spanish-American war of 1899 and Puerto Ricans have been American citizens since 1917. Better job opportunities in the U. S. have drawn a large number of Puerto Ricans to the U. S. , the majority of whom have settled in the large cities in the eastern seaboard.
