化学杀菌剂
A customer has two DS8000 systems in their environment. One DS8000 has FlashCopy licensed while the other does not. The customer wishes to license FlashCopy on the second DS8000. Which of the following describes the TDA requirement in this situation（） ["a pre-sale TDA is mandatory","a pre-install TDA is mandatory","a pre-install TDA is not mandatory since it is not FirstIn Customer Location （FICL）","both pre-sale and pre-install TDAs are mandatory"]
后台服务
An administrator is configuring an LPAR for a NIM installation and is unsure if the 'Ping Test' option within SMS is a required configuration step. Which statement best describes the 'Ping Test' option?（） ["The 'Ping Test' is a recommended step to verify the IP information entered into the RIPL SMS panel.","The 'Ping Test' is a mandatory step required to commit the IP information entered into the RIPL SMS panel.","The 'Ping Test' is an optional step to verify network configuration entered into the RIPL SMS panel on older copper-based networks.","The 'Ping Test' is an optional step to verify network connectivity between client and server, where ICMP traffic is allowed on the connecting network."]
在商品运输保险中，以下属于商品运输中的综合险的是（） ["因受震动、碰撞、挤压而造成的商品破碎或包装开裂","在装货、卸货或转载时因遭到不属于明显包装质量所造成的保险物的损失","利用火车、汽车运输时，因车辆倾覆、出轨等造成的损失","因运输工具发生火灾、爆炸、碰撞而造成的损失"]
结合实际，论述社会流动的原因。
