贵公司人力资源部是否需要一个既受过专业训练,又具有良好工作经验的人?如需要,请接受我为候选人,因为我具备这两种独特资质.

Does your company's human resources department need a professionally trained, but also has good working experience in person? If necessary, please accept me as a candidate because I have these two unique qualifications ..

Whether your company HR need a professional trained and have good working experience such as the need for candidates please accept me because I have these two unique qualifications

我认为我既具备优秀的营销教育背景,又有广泛的商业课程知识.

I think I have a good education background the marketing and extensive business course knowledge

贵公司5月2日在晚报上刊登的招聘市场研究经理的职位正是我渴望的机会.

Your company on may 2 in the evening paper the market research manager position is I have been longing

你是在写求职信吧？我没有按照你的中文一个字一个字的翻译，那是因为，中文和英文在写作方面真的区别太大，希望下面的翻译对你有所帮助：

(1) Does your Human Resource Department want a person who is professionally trained and has good working experience? If so, please consider me as a candidate, because I have both of these qualities.

(2) I feel my educational background in business and marketing is exceptionally strong.

(3) I’m very interested in the Marketing Research Manager position your company posted in the May 2nd Evening News paper.

Both translation you did are well ,yet , i think translate as follows maybe better:

Does your company want a professionally trained and experienced person?If it does, please accept me as a candidate for I actually own both qualifications above ..

the second translation should be:

In my opinion, I excel in background knowledge ofmarketing and business course education.

the third maybe:

I'm longing for the market research manager position gazetted on May 2nd in evening paper by your company.