【 】的任务是诊断和改正程序中的错误。

紧急停车时怎样确保转化催化剂不结炭？

There is no other man in history than Thomas Jefferson who formulated the ideas of democracy with such fullness, persuasiveness and logic.

A．developed

B．expressed

C．established

D．put forward

声带松弛肌为

A．环杓侧肌

B．环杓后肌

C．环甲肌

D．甲杓肌

E．杓肌

为了保证煤粉能吹进高炉又不致使热风倒吹入喷吹系统，应视大气压力确定喷吹罐压力。