请根据短文内容判断给出的语句是否正确，正确的写“T”，错误的写“F”。 Hiring the right employee is a challenging process for a company. A bad hire not just wastes your time and money, but also impacts the team spirit and company morale. A good hire, however, pays you back in employee productivity, successful employment relationship, and business culture enhancement. Here are certain rules that you can use to select the right employee. Design an effective advertisement. A clearly targeted ad. attracts qualified candidates and discourages others. You can make your ad. More effective with a precise and specific job description. Ask the right job interview questions. The purpose of the interview is to find out if the candidate is a strong fit to your business. By using a sequence of particularly designed questions, you are able to get a true picture of your potential employee. Check backgrounds and references. Background checking helps you reduce risks and improve the overall quality of hire. You need to verify that all the presented credentials, skills, and experience are actually possessed by your candidate. ( ) 26. Hiring the wrong employee is expensive, costly to a company, and time consuming. ( ) 27. A company has to spend a lot of money hiring a right employee. ( ) 28. An advertisement with a clear target will make all candidates lose courage. ( ) 29. Well designed interview questions can help you know more about the candidates. ( ) 30. Work experience is one of the primary things for an employer to verify in background checking.