Poor geographical foundation, how to solve problems with the help of the great god!

The annual radiation is only related to latitude, weather conditions, altitude and sunshine hours.

A, A and B have the same latitude, so A is wrong. Relatively speaking, the higher the altitude, the greater the solar radiation. However, the terrain of Shandong is southeast hills and northwest plains. It is reasonable that B is higher than A, and B has a large amount of solar radiation, but B is smaller than A in the figure, so it is wrong. D, vegetation will not affect the solar radiation, so it is wrong.

C, first of all, the second place is in the coastal area, which is greatly influenced by the sea surface wet airflow and coastal current. On the windward slope, the sea surface wet airflow is easy to form precipitation, so the weather is cloudy, with more rain and less solar radiation; A is located in the northwest plain, leeward slope. The weather is sunny and there is a lot of solar radiation.

Pure hands, hope to adopt, there will be no doubt.