汽车金融公司是从事汽车消费信贷业务并提供相关汽车金融服务的专业机构。( )
下列选项中不属于热胀冷缩现象的是( )。
As for a lesson plan ,a teacher says,“When do lesson planning, I always prepare some extra and alternative tasks and activities so that I have the options to cope with the unexpected situations.” According to the teacher’s words, we can know that the teacher follows the principle of ______in lesson planning.
钾离子竞争性酸抑制剂的作用机制是