消费者处于食物链的中间环节，属于异养生物。如下面的（） 草。 小麦。 水稻。 牛。
《十日谈》的作者是？（） 大仲马。 塞万提斯。 普契尼。 薄伽丘。
利用高温、紫外线照射、稀释等办法杀灭或减少致病病原体的消毒方法是（）
A branch office of Acme Insurance has 15 IP phones connected to the main office using the distributed call processing model. Normally， the phones work with great quality. However， during very busy times when all of the agents are on the phone at the same time， the voice quality drops precipitously. Words or phrases or both are dropped from conversations. What is the most likely cause of the problem？（） large files are being downloaded over the WAN network。 IP phone traffic is not being classified correctly。 more bandwidth is required for the office LAN。 Call Admission Control has not been implemented 。 employees are watching videos over the internet。 header compression is not being used。
低压配电系统的保护重复接地电阻不大于（）；接地装置的设计和施工应符合《工业与民用电力装置的接地设计规范》 4Ω；。 10Ω；。 20Ω；。 1MΩ。。
下列技术指标中，当市场行情处于盘存时会不适用的有（）。
