s*******1
发帖数: 135 | | s*******1
发帖数: 135 | 2 If W is selected, then either X or Y is selected.
It should be deduced as W TO X or W TO Y, what is the counter positive
negation?
1. (-) (X+Y) TO (-) W?
2. (-) X TO (-) W
3. (-) Y TO (-) W
A. 1 is correct
B. 2 and 3 are correct | n***e
发帖数: 461 | 3 W -> X or Y
then the only correct inverse negative is NOT (X or Y) -> NOT W, which is
(both) NOT X and NOT Y, then NOT W.
so none of the choices here is correct. ??? |
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