A、2. B、5. C、4 D、3 D综合整篇录音原文，它提到first…．Second…．Finally…．因此推断出客户可采用三种方法进行短期投资。

If you want to invest money at short term, you’ ve got several possibilities: first, a current account. This gives you the possibility of having all your money at your immediate disposal. It also entitles you to a cheque-book. Second, you’ ve got a deposit account, which usually pays about 3. 5% interest, less tax. In that respect, a deposit account’ s a better investment than a current account. However, though you are entitled to a cheque-book, you can only withdraw up to a certain sum each month. For large amounts, you must give the bank a few months’ notice. Finally, you have certificates of deposit. These pay in the order of 6.5% interest.
28. How many possibilities are there for a customer to invest money at short term?
29. With what kind of deposit can a customer NOT use a cheque-book?
30. What is the interest rate for maintaining a deposit account?