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"]
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战后日本外交政策经历了四个阶段：全盘接受美国政治经济改革的“政治侏儒”外交；美国庇护下的“经济外交”；以美日关系为基轴的“多边自主外交”；“政治大国外交”。由此不能得出的结论是（）。 ["日本外交侧重点由经济变为政治","日本外交性质由追随变为自主","美日关系仍是日本外交的重点","战后日本的外交姿态由高变低"]
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"]
液化石油气充装过程不得超装，这是由它的（）性质决定的。 ["汽化潜热大；","密度大；","饱和蒸汽压大；","热胀冷缩"]
日常生活中，砷的常见污染来源是（）。
