医患关系模式从主动、被动型到共同参与型()
A.医务人员的作用逐渐减弱
B.医务人贯的责任并未减弱
C.医生的工作减少了
D.关系模式随病情的变化而变化
参考答案:B, D
He________ his experiments and made a great contribution to our country. [ ]
A. dived himself into
B. devoted himself into
C. dived into
D. devoted to
为保证伸缩缝有效,栏杆与扶手的接缝处不需要填料填充。 ( )