完型填空阅读下面短文,掌握其大意,然后从26-35各题所给的 A、B、C和D项中,选出最佳选项。The Arctic Region(北极地区) is one of col
Textbooks like to say the Arctic is an ocean surrounded by continents, while the Antarctic is a continent surrounded by an ocean. Here's something you might not realize about the arrangement. All that seawater under the North Pole moderates the climate to some extent. Yet the South Pole doesn...
The Arctic is a beautiful and important part of our planet. We need to take action to protect this unique region and the animals and plants that live there. 1. What is the main source of food for polar bears? A. Fish B. Seals C. Walruses D. Plants 相关...
F-region/ A9420J F-region A9420 IonosphereThe behaviour of the Arctic F-region has been examined in order to investigate further the tentative conclusion ( Duncan, 1962) that a certain degree of 'Universal Time control' is observed there during winter. Secondary maxima in the F2-layer ...
8. One fascinating species found only in the Arctic is the narwhal, often referred to as the ‘unicorn of the sea’. Why? Well, male narwhals have a straight tusk projecting from the front of their head that can grow to over 3m in length! 9. The word ‘Arctic’ comes from the Gree...
阅读下列短文,在空白处填入1个适当的单词或括号内单词的正确形式。Antarctic a and the Arctic region are the most sou
What is the Arctic region?Defining Regions of the WorldThe Earth can be divided into various biomes and regions that are based either on physical location or the types of plants and animals that live there. For example, the tropical region of the Earth is located between the Tropics of ...
The Arctic region is warmer than it used to be and it continues to get warmer. Scientists first started to see changes in the Arctic climate in the 1970s and 1980s. And over the past 30 years, it has warmed more than any other region on the earth. Most scientists agree that Arctic ...
She herself grew up in the region, a “magical place” where the sun does not set in the summer and never rises in winter. Amid warming temperatures, business interest is growing in the Arctic, including in oil and gas exploration, fisheries, tourism and shipping. T...
Meanwhile, representatives of MPs data across the large Arctic region should be mutually verified with in situ observations and modeling. Therefore, we suggested that systematic monitoring MPs in the Arctic cryosphere, potential threats on Arctic ecosystems, and the carbon cycle under increasing Arctic ...