评价食物蛋白质的营养价值主要是以_____________、蛋白质的消化率和_____________3个方面进行评价。
参考答案:蛋白质的含量 被人体利用程度
The teacher suggested the dictionary ___________ at once.
A.be referred to be bought
B.be referred to being bought
C.referred to be bought
D.referred to being bought
下列离子方程式书写正确的是()。
A.用碳酸钠溶液吸收少量二氧化硫:2CO+S2O+H2O2HCO+SO
B.铁作电极电解饱和食盐水:2Cl+2H2O2OH+H2↑+Cl↑
C.向Ba(OH)2溶液中逐滴加入NH4HSO4溶液至刚好沉淀完全:Ba2++OH-+H++SOBaSO4↓+H2O
D.Fe2O3溶于HI溶液中:Fe2O3+6H+2Fe3++3H2O