Which of the following about action potential is wrong?
A: all or none
B: unattenuated potential
C: has refractory period
D: stimulus dependence
A: all or none
B: unattenuated potential
C: has refractory period
D: stimulus dependence
举一反三
- ___ has "all or none" phenomenon. () A: The postsynaptic potential B: The end-plate potential C: The receptor potential D: The spike potential E: The generator potential
- 下列哪项不影响心肌细胞的auto-rhythmicity A: maximal repolarization potential B: threshold potential C: effective refractory period D: 4期自动去极速度
- Which one of the following is not the characteristic of cardiacNa+ Channels? A: very fast opening B: responsible for initiating and propagating the action potential in fast response cells C: threshold potential is –40mV D: not Tetrodotoxin sensitive
- An analyst does research about factors affecting potential GDP. Which of the following will most likely increase potential GDP（） A: Increase the price level. B: Increase the human capital. C: Decrease money wage rate.
- Which of the following is not a function of a business report? ( ) A: To examine potential and available solutions to an issue, a situation, or a problem B: To inform employees to attend meetings or workshops C: To make conclusions about an issue or a problem D: To produce a range of suggestions for future action