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问题 单项选择题

再生气加热炉运行过程中按下（），微机给燃烧器一个停炉信号，燃烧器自动关断燃气电磁阀，向中控发出停炉信号

A、START键

B、RUN键

C、OFF键

D、停炉按钮

答案

参考答案：D

多项选择题

品牌替代性调查分析主要调查（）。

A、品牌卷烟的促销方式

B、市场对清退该品牌的反映

C、该品牌被其他品牌替代的可能性

D、替代该品牌的主要品牌
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单项选择题

Rapid application development (RAD) systems purport to lighten the developer’s (46) by making it easy to program an application with simple intuitive steps.

RAD tools (47) the developer everything needed to construct a fully functional application quickly and easily. They make short work of modifying the developed product to (48) changes after the program is finished. Applications developed with RAD tools are constructed as they are envisioned. As an application’s real usefulness (49) , the developer armed with RAD tools should be able to (50) on new features with little fuss.

（48）是（）

A.accommodate

B.account

C.decrease

D.eliminate
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