不属于在线监测技术拓展应用项目的是()。
A.隔离开关触头温度在线监测
B.电缆沟测温在线监测
C.导线测温
D.线路图像监控
参考答案:B
吸气后紧闭声门,用力做呼气动作(Val-salva动作)时,可使哪种杂音增强
A.二尖瓣狭窄的杂音
B.二尖瓣关闭不全的杂音
C.肺动脉瓣狭窄的杂音
D.肥厚型梗阻性心肌病的杂音
E.三尖瓣关闭不全的杂音
Teachers be sensitive to the development level of each student so as to help them better.
A.can
B.may
C.are able to
D.need to