In __________ review off 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of __________ heart disease by 76%. _______ A. a; the B. the; a C. a; 不填 D. 不填; a 答案:C植物营养组织的主要功能是( )
A、对细胞有支持作用B、对细胞有保护作用C、输导营养供其他组织利用D、储藏营养物质供细胞利用