用微量凯氏定氮法测出某肉类制品含氮量为4%，其蛋白质含量为（）
A.20%
B.25%
C.30%
D.35%
E.40%
参考答案：B
Never in my wildest dreams _____ these people are living in such poor conditions. [ ]
A. I could imagine
B. could I imagine
C. I couldn't imagine
D. couldn't I imagine
沥青防水卷材施工前如何做好沥青胶的准备
