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1. |
According to a study by researchers from MIT, Coronavirus may be vulnerable to ultrasound vibrations between which of the following megahertz? |
A. | 15 and 75 |
B. | 25 and 100 |
C. | 40 and 125 |
D. | 55 and 150 |
E. | 60 and 180 |
Answer» C. 40 and 125 | |