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[模拟] 数据库系统工程师计算机专业英语(四)

选择题

In object-oriented (1) , objects can be viewed as reusable components, and once the programmer has developed a (2) of these components, he can (3) the amount of new coding required. But (2) a (4) is no simple task because the integrity of the Original software design is critical. Reusability can be a mixed blessing for user, too, as a programmer has to be able to find the object he needs. But if (5) is your aim, reusability is worth the risk.

第1题：

(1)

A.complexity

B.creating

C.indisposing

D.library

E.maximize

F.minimize

G.reading

H.procedure

I.productivity

J.programming

K.security

L.using

参考答案：J

第2题：

(2)

A.complexity

B.creating

C.indisposing

D.library

E.maximize

F.minimize

G.reading

H.procedure

I.productivity

J.programming

K.security

L.using

参考答案：D

第3题：

(3)

A.complexity

B.creating

C.indisposing

D.library

E.maximize

F.minimize

G.reading

H.procedure

I.productivity

J.programming

K.security

L.using

参考答案：F

第4题：

(4)

A.complexity

B.creating

C.indisposing

D.library

E.maximize

F.minimize

G.reading

H.procedure

I.productivity

J.programming

K.security

L.using

参考答案：B

第5题：

(5)

A.complexity

B.creating

C.indisposing

D.library

E.maximize

F.minimize

G.reading

H.procedure

I.productivity

J.programming

K.security

L.using

参考答案：I

在面向对象的程序设计中，对象可被看做是一种可重用的构件。一旦程序员开发了一个构件库，就可以使新程序需要的代码数量最小化。但是，建立一个构件库却并非易事，，因为最初的软件设计的完整性是很重要的。当程序员能找到所需要的对象时，对用户来说，可重用性是一个好坏参半的事情。但是，如果效率是你追求的目标，那么可重用性还是值得一用的。

For users, microkernel technology promises (1) , compact and sophisticated operating systems that are typically (2) across a range of hardware platforms. These operating systems will be customizable to let users run multiple operating system and application "personalities" on top of a single microkernel (3) .

Microkernel based systems can provide this flexibility because the core operating system functions are (4) from the large number of utilities, features and extensions that are layered on top of them. As a result, updating and main