【单选题】如图,正方体ABCD-A 1 B 1 C 1 D 1 的棱长为a,那么四棱锥D 1 -ABCD 的体积是 [ ]
【多选题】留置导尿护理措施包括:
B.
引流管长度以病人翻身但引流管末端不会浸入尿液为度
【单选题】如图,正方体ABCD-A1B1C1D1,E为棱CC1的中点,如果将正方体的棱长扩大到3倍,则四面体E-A1BD的体积扩大的倍数是( )。
【判断题】留置导尿管的病人,应防止逆行感染,其方法为保持尿道口清洁;每日定时更换集尿袋;每周更换导尿管1次。
【简答题】如图正方体ABCD-A 1 B 1 C 1 D 1 的棱长为2,则点B 1 到直线AC的距离是______.
【单选题】--- Do you have any idea why the bus – drivers are on strike? --- As far as I know, they are ____a pay rise.
【单选题】--- Do you have any idea why the bus – drivers are on strike? --- As far as I know, they are_____
A.
11.--- Do you have any idea why the bus – drivers are on strike? --- As far as I know, they are_____________a pay rise. A.calling off