investment manuals

例句：

1. 1. The investment manuals provided by thebank are very helpful for investors.
   银行提供的投资手册对投资者非常有帮助。
2. 2. The investmentmanuals provided by the bank are veryhelpful for investors.
   银行提供的投资手册对投资者非常有帮助。
3. 3. The investment manuals providedby the bank are very helpful for investors.
   银行提供的投资手册对投资者非常有帮助。