[单项选择]Perhaps there is only the moon to compare with it. Of all the achievements of American engineering, only the landing on the moon and the planting there of a wrinkled flag can rival the construction of Panama Canal as an epoch-making accomplishment. The Suez Canal, the trans-Siberian Railroad and the Taj Mahal all pale beside it. The canal’s construction is more closely akin to the pyramids of Egypt in its scope and difficulty of execution, but in the modern era, there is only the moon.
Like the landing on the moon, the construction of a canal across the narrow Isthmus of Panama was a dream long before it became reality. As early as 1534, Charles I of Spain proposed a canal at Panama, but it would take nearly 400 years for builders to catch up with his imagination.
When the canal finally was proposed required all the creativity the twentieth century could muster. It was the largest public work ever attempted. Its engineers had to control a wild river, cut the continental divid
A. Suez Canal
B. trans-Siberian Railroad
C. Taj Mahal
D. pyramids of Egypt