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问题 选择题

Mrs. Tang ________ two hours a day reading. [ ]

A. spends

B. has

C. takes

D. uses

答案

答案：A

问答题 简答题

试述柴油机与汽油机工作原理的主要区别。
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单项选择题

In object-oriented (51) , objects can be viewed as reusable components, and once the programmer has developed a (52) of these components, he can (53) the amount of new coding required. But (52) a (54) 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 (55) is your aim, reusability is worth the risk.

A．complexity

B．creating

C．indisposing

D．library

E．maximize

F．minimize

G．reading

H．procedure

I．productivity

J．programming K. security L. using
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