GRE Reading Comprehension: ETS-GRE阅读ETS - 5BHQ87176M989IDE7

According to the passage, wind over the ocean generally does which of the following? A. Causes relatively cool, dry air to come into proximity with the ocean surface. B. Maintains a steady rate of heat and moisture transfer between the ocean and the air. C. Causes frequent changes in the temperature of the water at the ocean's surface.