休克患者正确的补液原则是()
A.不必补液
B.宁多勿少
C.宁少勿多
D.需多少,补多少
E.失多少,补多少
参考答案:D
运动神经切断后所支配的肌肉萎缩,是因为失去神经的()。
A.传导作用
B.支持作用
C.允许作用
D.营养作用
E.支配作用
Each step of a staircase is 0.25 meter wide and 0.20 meter high, as shown in the figure above. All angles shown in the figure are right angles. If the height of the staircase is 3.6 meters and the landing at the top of the staircase is 1 meter wide, how long, in meters, is AB ?