Which background process is responsible for writing the dirty buffers from the write list to the data files during a checkpoint？（） CKPT。 SMON。 LGWR。 DBWn。 ARC。
When would the Cisco Supervisor Desktop fail to show an agent that is logged in? （） The agent is not ready. 。 The agent is not on a call. 。 The agent is an IP phone agent. 。 The agent is not in the team currently being viewed by the supervisor.&e。
下列不采用累进税率的是（）。 增值税。 土地增值税。 营业税。 房产税。
（）的《兽道》与《在祠堂里》、《凶手》等集中描写了地方军阀令人发指的罪行。
变电器油每年都要取样测试，一般的试验项目为（），（）及（）。
What three in combination are factors that can cause four-wave mixing in fiber-optic cables？（）
