氟斑牙诊断的一个重要依据是A．高氟区居住历史B．釉表面有白垩斑C．釉表面呈黄褐色D．患牙对称性分布

()When an Americans says I thought it was quite reasonable in response to your inquiry about the price of something he has just bought, you can rightly assume that he is willing to tell you its exact price.()

the University of York. Please write an application letter to the School of English to introduce yourself and inquire the relative information on the postgraduate studies of English Literature. Note: The letter must be in formal form and the inquiry must be relevant to the subject in at least around 150 words but no more than 200 words. Your scores will be based on the formation, logic, diction, and tone.

A、the purpose of writing

B、description of what happened and the experience

C、your demand

D、urge immediate solution and response

What kind of letter is this？

A．A letter of complaint

B．A job inquiry

C．A letter of recommendation

D．A request for information

A、Do not waste time on fact checks or data verification because e-mails are not legally binding in the same way a response letter is.

B、In concluding your response message, be succinct and avoid personal notes.

C、When answering a group of questions, avoid clumping them into a bulleted list.

D、If a policy or procedure presented in your response needs authorization, seek approval from a supervisor or executive before writing.

Your early reply to this inquiry will be highly appreciated.

A．I have made an inquiry and expect an early reply.

B．I enjoy receiving an early reply.

C．I am interested in asking, about your early reply.