在Excel中,如果要对数据进行分类汇总,不需要先对分类字段进行排序.。()

未分类题What s the author s attitude toward McDonald s present situation?

未分类题Your friend Jason is elected as the Chairman of the Students Union of your university. Write a letter to congratulate him, state the reason for his success, and express your best wishes and encouragement. You should write about 100 words on ANSWER SHEET 2. Do not sign your own name at the end of the letter. Use 'Li Ming' instead. Do not write the address.