题目内容：
China lies mainly in the northern temperate zone under the influence of monsoon(季风)．From September and October to March and April next year monsoon blow from Siberia and the Mongolia Plateau into China and decrease in force as it goes southward，causing dry and cold winter in the country and a temperature difference of40℃between the north and south．The temperature in China is 5℃t018℃lower than that in other countries on the same latitude in winter．Monsoon blows into China from the ocean in summer，bringing warm and wet cur-rents，thus rain． Great differences in climate are found from region to region owin9‘to China’sextensive territory and complex topography(地形)．The northern partof Heilongjiang Province in northeast China has no summer．Hainan Island has a long summer but no winter；the Huai he River valley features four clear seasons；the western part of the Qinghai ·Tibet Plateau is covered by snow all year round；the southern part of the Yunnan—Guizhou Plateau is spring—like all the year；and then or the estern inland region sees a great drop of temperature in the day．
根据以上内容,回答题.
Which of the following statements about monsoon is true? A．Monsoon makes the temperature 5℃t018℃lower．
B．Monsoon blowing from May to August brings rain．
C．Monsoon goes from Siberia and the Mongolia Plateau．
D．Mon soon causes dry and cold summer in the country．
参考答案：
答案解析：