13、EDI在外贸领域的应用已达到比较成熟的阶段，贸易商可以通过EDI（）。

14、下列银行业务中，属于逆汇结算的有（）。

15、汇票的出票日期有何重要作用（）。

一类环境中，钢筋混凝土梁的保护层厚度最小取()

按照西方文学理论的划分方法，文学体裁按四分法可以分为哪四类？（多选）A小说B诗歌C散文D戏剧E议论文F记叙文G说明文

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12.WhatarethewritingstepsofBusinessEnglishCommunication?

13.Whatarethepinciplesunderlyingbusinesscommunication?

14.Whatarethecriteriaforeffectivebusinesswriting?

15.Whatarethefourelementsforeffectivewriting?

16.Whatarethemainpartsinthegeneral-specificpatternofanessay?

17.Whatdevelopingstructuresofbusinesswritingarementionedinthisweek?

18.Whatarethetwoavailabletypesofprocessessays?

19.Whatwillbementionedinthebodyofaprocessessay?

20.Whatarethepurposesofeditingandrevisinginbusinesswriting?

21.Whatarethethreelevelsoftechnniquesineditingandrevising?