第1题：
What’s the difference between an interface and abstract class?
(接口与抽象类有什么区别)
第2题：
There is（）difference between tuition rates in public and private institutions of higher learning.
Ano
Bsignificant
Csome
DNone of the above
第3题：
The major difference between project and line management is that the project manager may not have any control over which basic management function?
A . Decision-making
B . Staffing
C . Rewarding
D . Tracking/monitoring
E . Reviewing
第4题：
what is the difference between the HSRP and VRRP？
第5题：
What are the major distinctions between langue and parole?
Langue refers to the abstract linguistic system shared by all the members of a speech community, and parole refers to the realization of langue in actual use. Langue is the set of conventions and rules which language users all have to follow while parole is the concrete use of the conventions and the application of the rules. Langue is abstract; it is not the language people actually use, but parole is concrete; it refers to the naturally occurring language events. Langue is relatively stable. it does not change frequently; while parole varies from person to person, and from situation to situation.
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第6题：
第7题：
What is the difference between acquisition and learning? Illustrate with examples.
Acquisition refers to the gradual and subconscious development of ability in the first language by using it naturally in daily communicative situations. Learning, however, is defined as a conscious process of accumulating knowledge of a second language usually obtained in school settings. It is recognized that children acquire their native language without explicit learning. A second language is more commonly learned but to some degree may also be acquired, depending on the environmental setting and the input received by the L2 learner.
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第8题：
The real difference between plants and animals ____ what they do, and not in what they seem to be.
A: lies in
B: lies with
C: lies down
D: lies up
第9题：
What is the major difference between deductive learning of grammar and inductive learning of grammar?
A basic distinction in learning theory is between deductive learning and inductive learning. Deductive learning is an approach to language teaching in which learners are taught rules and given specific information about a language. They then apply these rules when they use the language. In contrast, in inductive learning learners are not taught grammatical or other types of rules directly but are left to discover or induce rules from their experience of using the language. The former is explicit teaching of grammar while the latter is implicit.
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第10题：
What does the command show | compare rollback 1 display?（）