化学吸附膜
参考答案：
润滑剂中的极性分子与表面金属通过电子交换从而形成的吸附膜或者说润滑剂的极性分子靠化学键力吸附在表面时，形成的膜即称为化学吸附膜
上直肌的支配神经为（）
A.面神经
B.动眼神经
C.滑车神经
D.外展神经
E.三叉神经
While managing the separation anxiety during hospitalization for a two-year-old boy, which of the following suggestions would be most helpful to the parents()
A. Tell the child the time they are leaving and returning.
B. Bring the child’s favorite toys from home.
C. Leave while the child is sleeping.
D. Keep the visit time short.
