【多选题】TTL门电路如图所示,其中可以实现Y=0的逻辑电路有: , 已知关门电阻Roff=0.91kΩ,开门电阻Ron=1.93kΩ。
【多选题】TTL门电路如图所示,其中可以实现Y=A'的逻辑电路有: ,已知关门电阻Roff=0.91kΩ,开门电阻Ron=1.93kΩ。
【单选题】下列转舵机构中不属于往复式的是( ) 。
【单选题】Perception is
A.
the process by which individuals connect to their environment.
B.
strongly influenced by the receiver's current state of mind, role and understanding or comprehension
C.
a factor that can affect how meanings are ascribed.
D.
a complex physical and psychological process.
E.
All of the above describe perception.
【多选题】TTL 门电路如图所示,其中可以实现Y=0的逻辑电路有( ),已知关门电阻Roff=0.91千欧,开门电阻Ron=1.93千欧。
【单选题】We now think of subliminal perception as:
B.
perception of stimuli that are above the psychological limen but are not conscious
D.
the unconscious perception of weak or disguised stimuli
E.
perception of stimuli that are below the physical limen