已知a＞0，b＞0，比较a3+23b与13a+23b的大小．

与X线本质不同的是

A．无线电波
B．微波
C．超声波
D．红外线
E．γ射线

人类已进入信息时代，很多信息给我们的生活和学习带来了 便利，但也存在一些伪信息，我们应当学会鉴别真假．

（1）下面是一则广告摘录：“……本电热水器高效、节能、省 时，其规格为220V，300W，在家庭电路中，烧开一普通保 温瓶的水，仅需4分钟……”该广告是否可信？________ （填“可信”或“不可信”），应用所学的知识说明你的上述结论：_______________________________

（2）如图所示的两幅图是从某交通宣传栏和某冷饮厂 广告宣传报中选取的，每一幅都违背了科学规律，请你帮助指出其中违背科学规律之处：a图___________________，b图_______________________

仓库组织机构的个人负责制适合（）。

A.企业内仓库

B.小型仓库

C.中型仓库

D.流通仓库

不属于心跳骤停的临床表现的是

A．意识丧失
B．无自主呼吸
C．瞳孔散大
D．大动脉搏动消失
E．心电图直线

Most computer systems are (165) to two different groups of attacks: Insider attacks and outsider attacks. A system that is known to be (166) to an outsider attack by preventing (167) from outside can still be vulnerable to the insider attacks accomplished by abusive usage of (168) users. Detecting such abusive usage as well as attacks by outsides not only provides information on damage assessment, but also helps to prevent future attacks. These attacks are usually (169) by tools referred to as Intrusion Detection Systems.

A．vulnerable

B．week

C．sensitively

D．helpless