题目

       Once there was a poor little girl living near a forest.She had no family and no one to love her.So she often __1__ sad and lonely.        One day, when she was walking in the forest, she found that a small __2__ was trapped unluckily in a bush. The butterfly tried to fly away __3__ failed.The kind little girl saved the butterfly with great care.Instead of flying away, the butterfly turned __4__ a beautiful fairy (仙女).The little girl was very __5__.        “Thank you for __6__ me.You are so kind.I will make any of your dreams come true，” said the fairy人体主要的供能物质是A．蛋白质 B．脂肪 C．糖类 D．维生素