MCQOPTIONS
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| 1. |
The research teams of which of the following countries has/have discovered two bacterial secreted proteins that can effectively inactivate a series of viruses, including the novel coronavirus, dengue and HIV? |
| A. | China |
| B. | USA |
| C. | Russia |
| D. | Both 1 and 2 |
| E. | Both 1 and 3 |
| Answer» E. Both 1 and 3 | |