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问题 单项选择题

一些舱室和处所的主照明要求至少要由来自分电箱的两个独立分路供电，因为（）。

A．一个支路的电流容量不够

B．增加照明的可靠性

C．超过了一个支路的灯点数

D．消除灯光的闪烁效应

答案

参考答案：B

补全对话，情景问答
句子搭配。
( ) 1. What is he doing?        
( ) 2. Thank you very much.        
( ) 3. What do you want to buy?        
( ) 4. Can you see the monkeys?       
( ) 5. Where's Mimi?    		A. It's in the tree. 
B. No, I can't. 
C. He's driving a car. 
D. You're welcome.                                              
E. Some oranges.
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单项选择题

The task at hand now is to (56) the programmers who still use yesterday’s software technology to solve today’s software problems. Object-oriented programming requires a new attitude toward problem (57) . Problem (57) with computer system becomes more natural. Application can (58) be translated into (59) . Although it is commonly believed that it will be easier to train new programmers to use object-oriented techniques than to (60) programmers who have substantial experience in applying conventional programming language constructs.

（57）是（）

A.solve

B.solves

C.solved

D.solving
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