化学结构上属于同系物的外源化学物同时作用于机体时常会形成拮抗效应。
A customer has a Fibre Channel switch residing in a configuration where both production and test data coexist. Which of the following is the simplest method for ensuring that the two types of data do not flow through the same port?（） ["VLAN","zoning","trunking","LUN masking"]
相对评估法
下列描述应用微生态治疗腹泻目的的是（） ["抑制病菌生长","维持正常菌群","促进营养成份的吸收","减少肠道内毒素的生成","促进胃酸分泌"]
A company needs additional storage for a block I/O based database application. The application has low I/O bandwidth requirements across the campus. The customer has a TCP/IP infrastructure and is interested in low-cost products that are compatible with its environment. Which technology is most appropriate for this customer?（） ["SAN","FCoE","FCIP","iSCSI"]
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