Bernoulli’s equation can be derived from the conservation of （）A、energyB、massC、volume D、pressure
Bernoulli’s equation can be derived from the conservation of （）
- A、energy
- B、mass
- C、volume
- D、pressure
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关于人体血流能量与血管参数，叙述正确的有A、流体能量：遵守能量守恒定律，简化伯努利方程（Bernoulli equation）是理想流体作稳定流动时所遵从的基本定律B、狭窄处压力阶差：简化伯努利方程可以计算狭窄口两端的压差，解释动态压强对血流梗阻的影响等C、脉搏：脉动血管具有弹性，人体动脉内的容积和压强具有周期性变化，叫作脉搏D、血管顺应性：用来描述血管容积变化和跨壁压强之间的关系，反映血管的弹性E、平均动脉压：就是一个心动压力波动周期的血压平均值
通过简化的伯努利方程（Bernoulli equation）可以求得A、左房室瓣口狭窄的压力阶差B、主动脉瓣口狭窄的压力阶差C、心内分流的压力阶差D、左房室瓣口反流的压力阶差，估算肺动脉压力E、右房室瓣口反流的压力阶差，估算肺动脉压力
经食管超声中血流速度测定利用的原理是A、伯努利方程(Bernoulli equation)B、文丘里效应(Venturi effect)C、Stewart-Hamilton方程D、多普勒效应(Doppler effect)E、连续方程(Continuity equation)
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单选题In an iostat report， which of the following options best describes the value of % tm_act？（）A The total CPU usage for this driveB The bandwidth utilization of the indicated driveC It can best be represented by the equation （%iowait - %ioidle）D It can best be represented by the equation （kilobytes read/kilobytes written） *100
多选题通过简化的伯努利方程（Bernoulli equation）可以求得（）。A左房室瓣口狭窄的压力阶差B主动脉瓣口狭窄的压力阶差C心内分流的压力阶差D左房室瓣口反流的压力阶差，估算肺动脉压力E右房室瓣口反流的压力阶差，估算肺动脉压力
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