在线求指导:完形填空 完形填空 Vitamin
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在线求指导:完形填空
完形填空 | ||||
Vitamins(维生素) are a discovery of the 20th century.A hundred years 1 ,no one knew anything 2 them.The vitamins are 3 by letters of alphabet.Vitamin A 4 by the eyes.There is vitamin A in milk,butter and green vegetables It 5 by the body. Vitanun B must be supplied (提供) 6 by some of our food.The skins 7 grains of all sorts have vitamin B in them. Vitamin C is very important 8 _ the body.Without it 9 teeth will become loose and their arms and legs become weak.Oranges and tomatoes 10 vitamin C in them. There are other vitamins. But these A,B,C are the most important. | ||||
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1 -5 C A B C D 6-10 C A D C B