单项选择题
A.20mmHgB.50mmHgC.100mmHgD.150mmHg
A.20~50mmHgB.50~100mmHgC.100~150mmHgD.150~200mmHg
A.自动充气泵持续压力监测B.指触法充气C.气囊测压表间断压力监测D.最小闭合技术