【Daily Topic】【Civil Engineering Version 20160218】
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This post was last edited by hesonchang214 on 2016-3-3 09:06. Reward for participation: 2 Wealth. Reward for correct answer: 9 wealth. Among the following common electric light sources, the one in which the flicker effect is not noticeable is ( ). A. Fluorescent lamp B. Incandescent lamp C. High-pressure mercury lamp D. Metal halide lamp Correct answer: B. Incandescent lamp
Among the commonly used electric light sources listed below, the one in which the flicker effect is not noticeable is (B). A、Fluorescent lamp B、Incandescent lamp C、High-pressure mercury lamp D、Metal halide lamp
Among the following common electric light sources, the one in which the flicker effect is not noticeable is (B). A、Fluorescent lamp B、Incandescent lamp C、High-pressure mercury lamp D、Metal halide lamp
Among the commonly used electric light sources below, the one in which the flicker effect is not noticeable is (A). A、Fluorescent lamp B、Incandescent lamp C、High-pressure mercury lamp D、Metal halide lamp