Which is the digital quantity？（ ）
A: time
B: pressure
C: sound
D: Temperature values per hour
A: time
B: pressure
C: sound
D: Temperature values per hour
D
举一反三
- which is the digital quantity? () A: time B: pressure C: sound D: tempreature values per hour
- A digital quantity has ten descrete values
- LIGHT: COLOR :: A: radiation: temperature B: celerity: span C: quality: quantity D: sound: pitch E: strength: stress
- Potential GDP per labor hour can increase due to A: increases in labor productivity. B: increases in the quantity of money. C: increases in population. D: decreases in the quantity of capital.
- 3. The three-phase point of water is a temperature and pressure condition under which water, ice and steam can coexist. The corresponding temperature is 0.01℃. Under this temperature, the external pressure of water is（ ） A: 101.325kPa B: 0.6106kPa C: 100kPa D: 1000kPa
内容
- 0
Which of these is not an electrical quantity（） A: time B: voltage C: current D: power
- 1
Water evaporates or steam condenses at the saturation temperature, which depends upon the pressure, the higher the pressure _____ the saturation temperature. A: the more B: the highe C: the lowe D: the highest
- 2
If a flow is unsteady, its ____ may change with time at a given location. ( ) A: Velocity B: Temperature C: Density D: Pressure E: All of the above
- 3
Which of the following belongs to vital signs? A: Pulse B: Respiratory rate C: Blood pressure D: Blood sugar E: Temperature
- 4
Which one is not Vital sign ( ) A: blood pressure B: body weight C: body temperature D: pulse E: breath rate