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102. Totem-pole outputs ________ be connected ________ because ________.
(a) can, in parallel, sometimes higher output current is required
(b) cannot, together, if the outputs are in opposite states excessively high currents can damage one or both of the devices
(c) should, in series, certain applications may require higher output voltage
(d) can, together, together they can handle larger load currents and higher output voltages
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