2. Seagull (scientific name: Larus canus): It is a medium-sized seabird of the order Ornithoptera and Gulls. Weight 394-586 grams; The body length is 451-510mm, and the life span is 24 years. Adult bird Stephane: the head and neck are white, and the back and shoulders are gray slates; The feathers on the wings are also slate gray, the same color as the back; The waist and tail feathers are all pure white. The primary flying feather has a white tip and a white wing mirror. In winter, the head and neck are scattered with brown fine lines, and sometimes the corners of the mouth are black. Iris yellow; The mouth, feet and toes are light green and yellow.
1. Is distance open education reliable?
The state recognizes that academic qualifications belong to the adult academic education series. Rel