题目内容

A．ABEGHIKB．ABEGHJKC．ACEGHIKD．ACEGHJK

ABEGHIK
B. ABEGHJK
C. ACEGHIK
D. ACEGHJK

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A．变量B．常量C．基类对象D．子类对象

A. 变量
B. 常量
C. 基类对象
D. 子类对象

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开一闭原则(Open-Closed Principle，OCP)是面向对象的可复用设计的基石。开一闭原则是指一个软件实体应当对．(37)开放，对(38)关闭；里氏代换原则(Liskov Substitution Principle，LSP)是指任何(39)可以出现的地方，(40)一定可以出现。依赖倒转原则(Dependence Inversion Principle，DIP)就是要依赖于(41)而不依赖于(42)，或者说要针对接口编程，不要针对实现编程。
(30)

A. 修改
B. 扩展
C. 分析
D. 设计

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All the following statements are true EXCEPT

A. a relatively small number of the volunteers had large or fast-growing nodules.
B. almost all those with large or fast-growing nodules were found to have lung cancer.
C. all the volunteers were at high risk for lung cancer.
D. most of the volunteers tested negative during screening.

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According to the passage, good guidelines for lung cancer screening

A. are a little bit too costly.
B. do not exist yet.
C. are being implemented.
D. have been developed.

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A．ABEGHIKB．ABEGHJKC．ACEGHIKD．ACEGHJK

ABEGHIK B. ABEGHJK C. ACEGHIK D. ACEGHJK

A．变量B．常量C．基类对象D．子类对象

All the following statements are true EXCEPT

According to the passage, good guidelines for lung cancer screening

ABEGHIK
B. ABEGHJK
C. ACEGHIK
D. ACEGHJK