测量冷却温度的下降值时，可以变动加热制度和集气管压力等。
参考答案：错
In the ORACLE system, sets of SQL statements and control flow statements that have been named, compiled ,and stored in database are referred to as stored
A．batches
B．procedures
C．triggers
D．transactions
肺内压与肺回缩力之差为
A．肺泡表面张力B．胸内压C．弹性阻力D．肺回缩力E．肺扩张力
