洗涤剂中的_________主要起洗涤作用。它可以 增加 润湿角,促进润湿。一些表面活性剂的加入还可以促进液体渗透到固体内部,即增加渗透作用

A、增加

B、减弱

C、不变

D、不确定

A、HLB值为7～9

B、HLB值为1～3

C、HLB值为3～6

D、HLB值为8～18

E、HLB值为15～18

A．与汽油兼容

B．减少 CO 、 NOx 的排放

C．提高辛烷值

D．减低成本

现有数值如下:0.49,-1.72,1.52,0.0,-0.18,0.22,0.11,-1.06,0.63,0.21,1.73,1.72,0.77,-0.21,0.72,1.85,0.79,-1.09,-0.51,-0.3,-0.26,0.59,1.89,1.91,-0.12,0.14,1.15,1.32,1.13,-1.68,1.82,0.1,-2.04,-1.56,-0.45,1.0,-1.02,0.62,0.01,-0.56,-0.05,1.49,0.36,-1.2,0.86,1.37,-0.79,1.32,0.69,1.53,-0.95,-0.2,1.14,0.52,2.0,1.1,0.9,0.91,0.03,1.06,-1.25,-0.82,-0.66,-0.2,-0.9,0.05,-0.31,2.48,-1.22,0.38,0.17,0.06,-0.7,-1.27,0.79,1.86,-1.03,-1.86,0.53,2.54,-1.33,0.51,-0.06,0.51,0.6,1.49,1.23,2.21,0.74,1.37,-0.53,0.88,0.39,-0.91,0.51,0.21,-0.46,-1.64,-1.16,-0.86;请用这些数值构建一个“先行后列”的行列数目相等的方矩阵,则其对角线上元素之间的增量百分比是多少 请将答案写在下面,如果有字母则全小写,数值之间以“英文逗号”分割!所有小数小数点后保持两位小数,整数数后加小数点和一个0;例如5.0;