Neutral packing is adopted to ( ).【单选题】

12 查阅

Neutral packing is adopted to ( ).

A. prevent corrosion by acids or alkali

B. break tariff and non-tariff barriers of exporting countries

C. break tariff and non-tariff barriers of importing countries

D. A, B and C are all right

参考答案:

C

暂无解析

英语考试