题目内容：

下面是某中外合资企业刊登在昨天的China Daily上的一则广告：

Office secretary(办公秘书)， with experience in bookkeeping, typewriting, public relations, operating PC (personal computer).  Address,  age,  health condition.

Write to A518, Charlie Office.

假如你是张林，现年20岁，身体健康，学习英语6年，学过广告中所列项目。通信地址是滨海市745信箱（P.O.Box745）。请根据广告中提出的招聘职务、应聘条件和你自己的简要情况，写一封自荐信。字数：120词左右。

Dear Sir,

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Yours;

Zhang Ling