[问答题] 简述企业投资及投资的特点。

人身保险与储蓄的比较？ 以下方法，不能提高抗拔桩的抗拔承载力的是（） ["扩大桩端","增加桩长","增大桩径","缩小桩径"] 信风 You deploy your companys Internet Web site. You need to deny anonymous access to the Web site, allowing only authenticated users. Which code segment should you use?（） [" <authorization> <allow users="?"\/> <\/authorization>"," <authorization> <deny users="?"\/> <\/authorization>"," <authorization> <deny users="*"\/><\/authorization>"," <authorization> <allow users="*"\/> <\/authorization>"] 信息泄露可导致（）。 ["信息窃取","信息篡改","信息冒充","信息抵赖"] 简述企业投资及投资的特点。