【简答题】to vary the inductance
【判断题】Series inductance of buried cables will be much greater than the inductance of overhand transmission line.
【单选题】高血压患者服药后血压在哪个范围,提示血压控制良好()。
A.
收缩压 <140 mmHg和舒张压 <90 mmHg
B.
收缩压 140 ~ 159 mmHg和舒张压 90 ~ 94 mmHg
C.
收缩压 ≥160 mmHg和舒张压≥95 mmHg
D.
收缩压 >140 mmHg和舒张压 >90 mmHg
【单选题】第斯多惠曾说:“教师本人是学校最重要的师表,是最直观,最有教益的模范,是学生最活生生的榜样。”这说明教师劳动具有( )。
【单选题】Inductance is the property of an electric circuit that _____.
A.
opposes any change in the applied voltage
B.
opposes any change in the current flow through the circuit
C.
aids any changes in the applied voltage
D.
aids any changes in the current through the circuit
【简答题】()是协助生产车间正常生产的辅助生产部门,也由若干建(构)筑物(厂房)组成。