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下述哪个是非离子型对比剂
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[听力原文]11-15(Q11)All mammals, except man and the monkey, swim naturally from birth. For mall, like the monkey, it is not instinctive to float. Deaths by drowning are common everywhere. (Q12)In the United States alone, about 7,000 children under four drown each year. Everything possible is done to prevent such tragedies. (Q13)One solution that is particularly effective is to teach children to swim while they are still babies. Most large towns in Florida and California already run lessons for babies and infants. (Q14)The idea has spread to Europe where, in several countries, special courses are now arranged for children from seven to twenty-four months. (Q15)The first step is to eliminate the child’s fear of the water, Next, he’s taught to float. Once he can do this naturally and without fear, the child grasps the technique and can push forward himself through the water. What’s the second step to teach a child to swimAt the second step, the child is taught to（）.
A—profit marginB—trade markC—seaworthy export packingD—certificate of originE—quality as per buyer’s sampleF—export declarationG—procedure of arbitrationH—risk of contaminationI—settlement on accountJ—retail priceK—find a ready marketL—enjoy popular pricesM—settle accountN—export licensing positionO—be in a position to do sth. 出口许可证情况（）仲裁程序
肩关节正位摄影，中心线射入点是
某企业计划进行一项投资活动，拟有甲、乙两个方案可以从中选择，有关资料为：甲方案固定资产原始投资100万元，全部资金于建设起点一次投入，该项目经营期8年，到期无残值，预计投产后年营业收入90万元，年营运成本60万元。 乙方案固定资产原始投资120万元，固定资产投资所需资金专门从银行借款取得，年利率为8%，期限为12年，单利计息，利息每年年末支付，该项目在第2年末达到预定可使用状态。在该项目投资前每年流动资金需要量为65万元，预计在该项目投资后的第2年末及未来每年流动资金需要量为95万元；另外，为了投资该项目需要在第2年末支付20万元购入一项商标权，固定资产投资于建设起点一次投入。该项目预计完工投产后使用年限为10年，到期残值收入8万元，商标权自投产年份起按经营年限平均摊销。该项目投产后，预计年营业收入170万元，年经营成本80万元。 该企业按直线法计提折旧，全部流动资金于终结点一次回收，所得税税率33%，该企业要求的最低投资报酬率为10%。 要求： (1) 计算乙方案的年折旧额； (2) 计算乙方案的年息税前利润和年净利润； (3) 计算甲、乙方案的各年现金净流量； (4) 计算甲方案的内涵报酬率； (5) 计算甲、乙方案的净现值； (6) 计算甲、乙方案的年等额净回收额； (7) 根据方案重复法对-甲、乙方案进行评价； (8) 根据最短计算期法对甲、乙方案进行评价。
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