食品中的矿物质对人体有什么作用?
参考答案:矿物质对人体具有维持生长、修补组织、保持器官机能、调节代谢反应等重要作用,是食品中不可缺少的营养物质。
____ impressed the audience most was_____the magician LiuQian played in last year’s Spring Festival Gala.
A.What; what
B.What; that
C.That; what
D.That; that
PBI是指何矿物质与蛋白质结合?
A.磷
B.硫
C.碘
D.硒