题目

Have you heard about Leap year? Leap year is a year that has 366 days instead of the usual 365. It normally occurs every four years, always on an even-numbered year. The extra day is added to our shortest month. That is the second month of the year, which in non-leap years has 28 days, two fewer than any other month. 36   We also call Leap year the bissextile year (闰年). 37    In our calendar system there is a need for a leap year because the solar year (the time it takes the earth to go around the sun once）is actually slightly more than 365 days long. That extra day—Feb 29 关于海洋与大气、陆地相互作用的叙述，正确的是 [　　] A．海洋的水分来自大气 B．海水运动基本不会影响海岸地形 C．大气的水热主要来自海洋 D．海滨地区都会形成三角洲