When the transistor is working in the saturated state, the internal potentiometer of the “transistor man cartoon” is set to (). A: infinity. B: zero C: In the middle D: None of the above
When the transistor is working in the saturated state, the internal potentiometer of the “transistor man cartoon” is set to (). A: infinity. B: zero C: In the middle D: None of the above
If the temperature is subzero, the temperature is . A: above zero B: below zero C: at zero D: high
If the temperature is subzero, the temperature is . A: above zero B: below zero C: at zero D: high
Which one does not belong to the advantages of power electronic devices? A: When the device turns off, it can withstand high terminal voltage and the leakage current is approximately zero B: When the device turns on, it can carry a large current, and the terminal voltage is approximately zero C: The device can work in amplified state D: The current can only flow through in one direction
Which one does not belong to the advantages of power electronic devices? A: When the device turns off, it can withstand high terminal voltage and the leakage current is approximately zero B: When the device turns on, it can carry a large current, and the terminal voltage is approximately zero C: The device can work in amplified state D: The current can only flow through in one direction
The cantilever beam shown here is subjected to two equal and opposite couples，for the section B（ ）.[img=414x136]1803a25c3173b7f.jpg[/img] A: The deflection is zero, the angle of rotation is not zero B: The deflection is not zero, the angle of rotation is zero C: Deflection and angle of rotation are both not zero D: Both deflection and angle of rotation are both zero
The cantilever beam shown here is subjected to two equal and opposite couples，for the section B（ ）.[img=414x136]1803a25c3173b7f.jpg[/img] A: The deflection is zero, the angle of rotation is not zero B: The deflection is not zero, the angle of rotation is zero C: Deflection and angle of rotation are both not zero D: Both deflection and angle of rotation are both zero
原文:7.005 译文:seven point zero zero five
原文:7.005 译文:seven point zero zero five
Due to the pure bending deformation, the longitudinal ( ) strain varies ( ) from ( ) at the neutral axis to a maximum at the outer fibers of the beam. A: normal; linearly; zero B: shear; nonlinearly; zero C: shear; nonlinearly; zero D: shear; nonlinearly; zero
Due to the pure bending deformation, the longitudinal ( ) strain varies ( ) from ( ) at the neutral axis to a maximum at the outer fibers of the beam. A: normal; linearly; zero B: shear; nonlinearly; zero C: shear; nonlinearly; zero D: shear; nonlinearly; zero
If the section figure has a symmetry axis, then for the figure ( ) to its symmetry axis. A: Both the static moment of inertia and the moment of inertia are not zero; B: Both the static moment of inertia and the moment of inertia are zero; C: The static moment of inertia is not zero, the moment of inertia is zero; D: The static moment of inertia is zero, the moment of inertia is not zero.
If the section figure has a symmetry axis, then for the figure ( ) to its symmetry axis. A: Both the static moment of inertia and the moment of inertia are not zero; B: Both the static moment of inertia and the moment of inertia are zero; C: The static moment of inertia is not zero, the moment of inertia is zero; D: The static moment of inertia is zero, the moment of inertia is not zero.
6. contact A: the state of talking or speaking B: the state of acting C: the state of communicating or meeting D: the state of laughing
6. contact A: the state of talking or speaking B: the state of acting C: the state of communicating or meeting D: the state of laughing
请选出小数0.33的正确读法 A: zero three three B: zero point thirty three C: zero point three three D: point three three
请选出小数0.33的正确读法 A: zero three three B: zero point thirty three C: zero point three three D: point three three
How to say “6.072”in English? A: six point seven two B: six zero seven two C: six and zero seven two D: six point zero seven two
How to say “6.072”in English? A: six point seven two B: six zero seven two C: six and zero seven two D: six point zero seven two