Since 1 month this year, there have been large-scale low-temperature rain, snow and freezing weather in Guizhou, Yunnan, Hunan, Guangxi and Jiangxi, causing some traffic disruptions.

Question 1:

Since 1 month this year, there have been large-scale low-temperature rain, snow and freezing weather in Guizhou, Yunnan, Hunan, Guangxi and Jiangxi, causing some traffic disruptions.

Question 1:B

Question 1:D

Question 1:C

(1) The weather forecast chart is mainly obtained from photos (RS) taken by satellites and then processed by computer (GIS). Choose b as the correct answer.

(2) At 8: 00+0111Yunnan-Guizhou area, the weather system was affected, because the strong cold air mass in the south was blocked by the plateau topography and met the warm and humid air mass in the southwest, forming a quasi-static front weather in Kunming. Choose d for the correct answer.

(3) This freezing rain is a precipitation phenomenon under a specific weather background. There is freezing rain in this season because there is an inversion layer at a certain height, the temperature is above 0℃, ① the temperature is a little low, ④ the height is a little high, which is consistent with ③. The correct answer is C.