单项选择题
Conversation One
A. It helps improve the physical health. B. It is good for a sound sleep. C. It helps develop mental toughness. D. It helps lose weight.
A. To inquire about switching majors. B. To find a helping supervisor. C. To make up the remaining credits. D. To apply for a master’s degree.
A. Arranging the warm currents in a more focused way. B. Whitening the surface of lands to reflect more sunlight. C. Generating tiny bubbles with fleets of customised boats. D. Producing chilly winds to cool the water to freezing point.