If you want to get the industry's best online privacy, you need to _______.
A.
sign a contract
B.
pay a small fee
C.
ask for permission
D.
register a new account
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举一反三
【单选题】{ In a half-wave rectifier circuit, for a typical real silicon diode (not ideal diode) at room temperature, the output voltage is less than the source voltage. This is because ( ). }
A.
There is no voltage drop across the diode.
B.
There is a voltage drop (approximately 0.7V) across the diode.
C.
The diode is in the reverse-bias region.
D.
There is a voltage drop (approximately 6V) across the diode.