企业提取的下列准备金可税前扣除的有（）。 ["坏帐准备金","风险准备金","存货跌价准备金","短期投资跌价准备金"]
A customer wants to create a 1:1 protection group with a DS3N-12 card. Which card slots would allow for a 1:1 protection?（） [" Slot 2 and Slot 4"," Slot 4 and Slot 6"," Slots 5 or 13 only"," Slot 16 and Slot 17"]
枝晶偏析
零磨损
萼花臂尾轮虫是（） ["海水种","淡水种","半咸水种","既能在海水又能在淡水中生活"]
阐述长期投资评估的特点及其评估程序。
