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【多选题】
下列对系统的表述错误的是______。A.
任何系统都具有目的性，要实现一定的目标
B.
在系统的相关性中，多元关系是基本关系
C.
多数系统中存在多阶层性，通过彼此作用，相互影响、制约
D.
系统的要素集、相关关系集、各阶层构成了系统的整体
E.
系统对外部的环境变化不具备适应性
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举一反三
【单选题】In computing, passwords are commonly used to limit access to official users. Yet the widespread use of passwords has serious drawbacks. Office workers now have to remember an average of twelve system ...
A.
They do not ensure security.
B.
They are difficult to remember.
C.
They have to be changed frequently.
D.
They limit computer accessibility.
【单选题】Acanthocephalans are commonly called ( ).
A.
roundworms
B.
blood worms
C.
flatworms
D.
probosis worms
E.
spiny-headed worms
【多选题】What are the three types of antonyms that are commonly indentified?
A.
complementary antonyms
B.
modifiers
C.
gradable antonyms
D.
converse antonyms
【简答题】In informal speech, people often omit sentence subjects because they are commonly understood. What are the omitted subjects in the following two sentences? Why do people know that these are the correc...
【简答题】Highly sophisticated electronic key systems are commonly equipped to______.
【简答题】磁卡与智能卡的主要差别是什么?
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