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题库 / OG2015V-SC-34
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
equipment, such as lights, that are visible and must be turned on and off and underestimate that
equipment, such as lights, that are visible and must be turned on and off and underestimate it when
equipment, such as lights, that is visible and must be turned on and off and underestimate it when
visible equipment, such as lights, that must be turned on and off and underestimate that
visible equipment, such as lights, that must be turned on and off and underestimate it when
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简单题：
Visible equipment表达清晰，说明人容易意识到照明类电器的用电，如果按照ABC的表达，那么删除掉定于部分，意思就不清楚了。
E：when放在这里不合适，这里是要做两类电器的用电量，that指代the amount of energy
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