After the Anasazi abandoned southwestern Colorado in the late 1200s or early 1300s, history’s pages are blank. The Anasazi were masons and apartment builders who occupied the deserts, river valleys, and mesas of this region for over a thousand years, building structures that have weathered the test of time.
The first Europeans to visit southwestern Colorado were the ever- restless, ambitious Spanish, who sought gold, pelts, and slaves. In1765, under orders from the Spanish governor in Santa Fe, Juan Maria Antonio Rivera led a prospecting and trading party into the region. Near the Dolores River in southwestern Colorado, he found some insignificant silver-bearing rocks, and it is thought that it was he who named the mountains nearby the Sierra de la Plata or the Silver Mountains. Rivera found little of commercial value that would interest his superiors in Santa Fe, but he did open up a route that would soon lead to the establishment of the Old Spanish Trail. This exp
A. early exploration of Colorado.
B. the history of the Anasazi in Colorado.
C. the Spanish influence in Colorado.
D. economic exploitation of Colorado.
| After flexing its mechanical arm and
finding some puzzling chemistry in a patch of Martian soil,the robotic rover
Spirit began investigating the composition of a rock named Adirondack yesterday
with two science instruments and a microscopic camera. Following programmed instructions from flight controllers, the six-wheel rover made several short turns and moved forward about six feet. It stopped within inches of the pyramid-shaped rock, about the size of a football. It was the vehicle’s second maneuver on the Martian surface since landing there on Jan. 3. Scientists at the Jet Propulsion Laboratory in Pasadena, Calif., said they did not expect results of the first rock examination until early today. But they were already both pleased and puzzled over the soil test results. "We’re starting to put together a picture of A. they felt both happy and satisfactory over the test results B. they didn’t expect to find the wonderful results C. they wanted very much to do more research over the rocks D. they were glad to see the results but they can’t explain them 我来回答: 提交
|
