The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; infrared radiation, however, is invisible because its wavelength - 0.1 millimeters - is too long to be registered by the eye.
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Ainfrared radiation, however, is invisible because its wavelength - 0.1 millimeters - is too long to be registered by the eye
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Bhowever, the wavelength of infrared radiation-0.1 millimeters-is too long to be registered by the eye making it invisible
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Cinfrared radiation, however is invisible because its wavelength-0.1 millimeters-is too long for the eye to register it
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Dhowever because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible
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Ehowever infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible
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正确答案: A