阅读理解。 Hawaii's Big Island Nickname: Hawaii's Island of Adventure Size: 4,028 square miles Population: 148,677.The most heavily populated areas are Hilo on the east side and Kailua-Kona on the west. Temperature: Averages between 71°F and 77°F year round ( expect the mercury (水银柱) to drop at higher heights ) Highest Peak: Mauna kea,13,796 feet Agriculture: Hawaii's agricultural products are mainly grown and processed On the Big Island, including coffee, macadamia nuts and papaya. Lodging: 9,655 rooms total；Nightly rates range from$35 to$5,000. Airports: Hilo International Airport on the east side and Kona International Airport on the west side. Rental Cars: All of the nationally known rental car companies have locations at Hilo International and Kona International Airports as well as numerous resorts. In addition, Hilo, Kona and the major resort areas are serviced by taxis. Resources: Call(800)648-2441 to order a video poster, brochures and maps from the Big Island Visitors Bureau. See WWW.Bigisland,org for updated information. Shopping: The large shopping centers are in Hilo, Kona, Waimea and the Kohala Coast. 1. The passage is intended to be read by _____. A. tourists B. businessmen C. students D. immigrants 2. The average population per square mile on the island is about _____. A. 28 B. 32 C. 44 D. 37 3. What does the underlined part 'expect the mercury (水银柱) to drop at higher heights' mean? A. Things are easy to lose weight at higher places. B. Dropping things from higher places is expected. C. Temperature is expected to be lower at higher places. D. Temperature is expected to be higher at higher places. 4. Which is NOT mentioned as a traffic means to get around the Big Island? A. By train. B. By air. C. By rental car. D. By taxi.