38.According to the passage, the introductory paragraph of a cover letter should include________.
A) your request for a job interview.
B) the position you are interested in
C) some examples of your achievements
D) your education background and degree
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39. Which of the following should be included in the concluding paragraph of a cover letter?
A)Your expected salary.
B) Your hobbies and interests.
C)Your request for a meeting.
D) Your professional background.
40. According to the writer, the purpose of a cover letter is to _____________
A) urge the employer to read your resume
B) please your potential employer
C) get the employer to meet you
D) show off your achievements
假定一个顺序存储的循环队列的队头和队尾指针分别为front和rear，则判断队空的条件为（ ）。
A. front+1 == rear
B. rear+1 == front
C. front == 0
D. rear== front
已知一个栈的入栈序列是1，2，3，…，n，其输出序列为pl，p2，p3….，pn，若p1是n，则pi是（）。
A. i
B. n-i
C. n-i+l
D. 不确定
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