神经酰胺的()与()连接,再与()或()相连接,生成鞘磷脂。
参考答案:羟基;磷酸;胆碱;乙醇胺
— Do you think she's going to leave?
— The ________ had crossed my mind. [ ]
A. matter
B. hope
C. desire
D. thought
防误操作闭锁装置不得随意退出运行,停用防误操作闭锁装置应经运行值班负责人批准。