空白重要凭证实行（）制度。 ["统一管理","分级负责","按周核对","专人专管"]
客运杂费的收费项目包括：（） ["携带品超重超大补收的运费","退票费","异地票手续费","无票人员到站补票票款"]
Interference is anything that（）the communication of a message. ["impact","imports","impedes","impair"]
调查组应当按照前款规定的期限完成调查工作，并向（）人民政府和（）环境保护主管部门提交调查报告。 ["同级；上一级","上级；同一级","同一级；上级","上一级；同级"]
Whatever the speaker communicates is the message, which is sent（）a particular channel. ["by all means","by no means","by any means","by means of"]
简述CRH380B型动车组定速装置ASC的使用注意事项。
