问题
单项选择题
脂肪酸败最早期的改变是()。
A.酸度升高
B.羰基价升高
C.过氧化值升高
D.皂化价升高
E.比重增加
答案
参考答案:C
脂肪酸败最早期的改变是()。
A.酸度升高
B.羰基价升高
C.过氧化值升高
D.皂化价升高
E.比重增加
参考答案:C
Passage 1
Which of the following is not a current characteristic of Chelsea a. Some slums of the Victorian period have been removed. b. Managerial and professional workers are main occupants. c. Most of the poor areas in 1898 do not change much till 2001. d. High birth rate and crime rate.