We regret that it is necessary to complain ______the non-delivery of the 10,000 tons of sugar under Contract BC-023.

题库:外贸英语 类型:最佳选择题 时间:2019-11-16 16:12:32 免费下载:《1994年外销员统考外贸英语试题》Word试卷

We regret that it is necessary to complain ______the non-delivery of the 10,000 tons of sugar under Contract BC-023.
A.concerning
B.about
C.regarding
D.with

本题关键词:IT,乙型肝炎病毒核心抗体诊断试剂盒(酶联免疫法)Diagnostic Kit for Antibody to Hepatitis B Core Antigen(ELISA);