药物进入体内的途径有（） A.口服 B.注射 C.灌注 D.外用

In information theory, "information" is regarded as knowledge which reduces or removes (71) about the occurrence of a specific event from a given set of possible events. The concept "event" is to be understood as used in the theory of probability. For instance, an event may be the occurrence of a (72) character or word in a given message or in a given position of a message.

In communication theory, channel is defined as that part of a communication system that connects the message source with the message sink. An encoder may be inserted between the message source and the input to the channel, and a (73) between the output of the channel and the message sink. Generally, these two units are not considered as being parts of the channel. In certain cases, however, they may be considered as pans of the message source and message sink, (74) . In information theory (75) to Shannon, the channel can be characterized by the set of conditional probabilities of occurrence of all the messages received at the message sink when a given message emanates from the message source.

（75）是（）

A.separately

B.respectively

C.individually

D.distributed

IBM的餐饮软件在中国有着（）以上的市场占有率。

A、60%

B、70%

C、80%

D、90%

法律和道德的关系问题是贯穿整个法理学、法哲学的问题，是法理学的核心问题。下列关于法律和道德的区别和联系正确的有哪些？（）

A.就上层建筑而言，法律和道德属于相同的范畴，法律是一种制度，道德是一种社会意识

B.道德在原始社会作为独立的或者与宗教、习俗相混合的形态而存在，法律在原始社会中也与宗教、习俗有十分密切的联系

C.法律与道德存在交叉与渗透，法律规范与道德规范的调控范围也有所重叠

D.道德是法律的评价标准和推动力量

细菌突变的发生是由于（）

A.基因重组

B.基因交换

C.质粒丢失

D.溶原性转换

E.核DNA碱基的改变

社会保障管理体制大体可分为哪两大类型？