为患者导尿时手套不慎破裂,正确的处理是()。
A.用乙醇消毒手套表面
B.用无菌胶布将破裂处粘好
C.用碘伏擦拭手套表面
D.立即更换
E.再加戴一双手套
参考答案:D
As the light turned green,I stood for a moment,not_______,and asked myself what I was going to do.
A.moved
B.moving
C.to move
D.being moved
一辆汽车以54 km/h的速率在某限速道路上超速匀速行驶,当这辆违章超速行驶的汽车刚刚驶过一辆警车时,警车立即从静止开始以2.5 m/s2的加速度匀加速追去(两车行驶路线看做直线),求:
(1)警车何时能追上超速车?此时警车的速度为多大?
(2)警车从开始加速起,在追上超速车之前两车相距的最大距离是多少?