Spears hurtled against shields.矛猛击在盾上.They hunt game with spears or a curved wooden boomerang.他们用长矛或木制曲形飞镖猎取野味.The warrior's spears were acuminated before the battle.战士们的矛在战斗前是弄成尖形的.Can you fill his hide with harpoo...
Burley found labeled glucose and fructose in equimolar amounts.波里发现等克分子量的示踪葡萄糖和果糖.Fructose is one of the most essential high - grade carbohydrates.果糖是大多数的人体必需的基本高级碳水化合物之一.Ketohexose A ketose SUGAR with six carbon atoms ,...
这种维生素通过小肠壁被吸收。This vitamin is absorbed through the walls of the small intestine.肠肽酶是由小肠壁的腺体分泌的.Erepsin is secreted by glands in the wall of the small intestine.肠壁薄,几乎是透明的,这可能是因绒毛萎缩.The wall is thin and almost transparent...