207. The greater the pressure difference...center, the ______ .
举一反三
- The main difference between initial urine and plasma is A: Colloid osmotic pressure B: Glucose concentration C: Sodium chloride concentration D: Crystal osmotic pressure
- 压力值必须超过800千帕。 A: The pressure value must be more than 800 kpa. B: The pressure value must be greater than 800 kpa. C: The pressure value must be over 800 kPa. D: The pressure value must be above 800 kPa.
- The direct motivation for lung ventilation comes from A: lung contraction B: elastic retraction of the lungs C: relief and contraction of respiratory muscles D: intrapulmonary pressure and atmosphere pressure difference
- Why are people now less likely to take their own lives? A: Pressure B: Urbanisation C: Greater freedom D: Leaving the village
- Under normal circumstances, the effective stimulus to maintain the excitability of the respiratory center is increasing of CO2 partial pressure in arterial blood.