材料管理的方针是()。
A.为施工生产服务
B.厉行节约
C.保证供应
D.从施工生产出发为施工生产服务
参考答案:D
A multigravida at 36 weeks’ gestation visits the emergency department because her boyfriend has beaten her severely. What should the nurse do first
A. Contact the authorities.B. Ensure the client’s safety.C. Identify a support person.D. Photograph the client’s injuries.
在下列各图中,分别标出了磁场B的方向,电流I方向和导线所受安培力F的方向,其中正确的是[ ]
A.
B.
C.
D.