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Test # 268 [26-Mar-2018]


1.
Ralph was late ________ work again. He may be fired.

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  • Precautions while using Mobile Phones

    Avoid using your cell phone in places

    Avoid using your cell phone in places, like a bus, where you can passively expose others to your phones electromagnetic fields. Cell phones communicate using signals in the microwave spectrum. The invisible stream of RF (radio frequency) signals penetrate our bodies when the device is held close, and as well as the longterm potential for cancer, there is also the potential to impact cognitive memory functions and to cause disorientation and dizziness. This article explains how to take precautions when using your cell phone.


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