MCQOPTIONS
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| 1. |
One second is equal to [MNR 1986] |
| A. | 1650763.73 time periods of \[Kr\] clock |
| B. | 652189.63 time periods of \[Kr\] clock |
| C. | 1650763.73 time periods of \[Cs\] clock |
| D. | 9192631770 time periods of \[Cs\] clock |
| Answer» E. | |