化学杂交剂（Chemical Hybridizing Agent，CHA）
This chemical element is harmful to human beings, but that one is not.A、这种化学元素对人体有害，但是那种是不会有害的B、这种化学元素对人体有害，但是那种不是。
点击查看答案
To get well, ( ).A、we are going to give the patient a chemical treatmentB、the patient needs a chemical treatmentC、the doctors suggest a chemical treatment of the patientD、a chemical treatment is necessary
化学消毒剂(chemical disinfectant)是指用于杀灭什么的化学药物( )A、微生物B、寄生虫C、真菌D、病原微生物E、细菌
______, as the chemical extinguisher agent, should be used for an electric fire.A.dry chemical or foamB.foam or soda acidC.carbon dioxide or foamD.carbon dioxide or dry chemical
化学需氧量（Chemical Oxygen Demand．简称COD）
化学需氧量COD（Chemical Oxygen Demand）是以化学方法测量水样中需要被氧化的还原性物质的量，这句话对吗？（）A、对B、错
When would the Cisco Supervisor Desktop fail to show an agent that is logged in? （）A、The agent is not ready. B、The agent is not on a call. C、The agent is an IP phone agent. D、The agent is not in the team currently being viewed by the supervisor.
