阅读下列短文,从每题所给的四个选项(A、B、C、和D)中,选出最佳选项,并在答题卡上将该项涂黑。 A The State of Colorado has four of the best parks out of the 58 national parks in the United States. The parks have some of the best scenery of all the national parks. Black Canyon(峡谷) of Gunnison National Park This park offers the most breathtaking views from up in the mountains into the canyons below. While exploring the canyons, you will find that the walls drop nearly straight down into the narrow valleys of the snake-like rivers below. Visit