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?