酒精性肝炎的特征性肝酶改变是（）

A:ALT、AST<500U/L，AST/ALT>2 B:ALT、AST>500U/L，AST/ALT>2 C:ALT、AST<500U/L，AST/ALT<2 D:ALT、AST>500U/L，AST/ALT<2 E:ALT、AST<500U/L，ALT/AST>2

SF6绝缘电流互感器湿度检测的注意值是多少uL/L。（）

A:250 B:300 C:400 D:500

220kV电力变压器例行试验时，油中溶解气体总烃（）应引起注意。

A:≥100ｕL/L B:≥150ｕL/L C:≥300ｕL/L D:≥500ｕL/L

• A. because of their similarity
• B. that we would not be able to understand it at all.
• C. to the popularization of English as a world language
  D the trend to become a global languageE. what once happened to LatinF. but the speed with which

连续监测法检测ALT活性浓度，标本量（v）10ul，试剂量350ul，比色杯光径（L）1cm（340nm处NADH摩尔消光系数E=6.3×10^3），经计算K值为

A:6508 B:5714 C:4920 D:5556 E:3915