债券的实际收益率水平主要决定于（）。 ["债券的供求关系","债券的票面利率","债券的偿还期限","债券的发行发式","债券的发行价格"]
新闻单位最重要的资源是（） ["人力资源","社会声誉资源","物质资源","频率（版面）资源"]
Which statement best describes the differences between Cisco SMARTnet and Cisco SMARTnet Onsite？（） [" CiscoSMARTNet Onsite includes all of the elements of Cisco SMARTnet with the additionalprovision of onsite technician to perform parts replacement"," CiscoSMARTnet Onsite is primarily attractive to customers who do not need to replace theirhardware immediately， but would still like an onsite technician to install and replace hardware"," CiscoSMARTnet Onsite includes certification classes and live network consulting at thecustomer site"," CiscoSMARTnet Onsite provides network monitoring for small-to-medium sized businesses andprovides onsite technical resources when hardware problems are detecteD"]
急停按钮应安装哪些位置，选何种形式，如何安装？
下表为某公司的资产负债表和损益表：
损 益 表：
该公司1996年发行在外股票数1200万股，1997年1500万股，其平均市价分别为5.0元和5.5元，1997年派息500万元。
问：1997年该公司
求：总资产周转率？
简述表外业务的各类及作用。
