This is hardly surprising , given breakfast , especially carbohydrate - based breakfasts boost brain glucose levels , and micronutrients , such as b vitamins commonly added to breakfast cereals are also know to have a positive effect on brain function 毫不奇怪的是，吃早餐，尤其是以碳水化合物为基础的早餐可以增加大脑的葡萄糖水平，而且微量营养素如通常添加到谷类早餐中的b族维生素对于脑功能也具有有益作用。
They spend most time to do multi - choice exercises and overlook to develop their hearing , speaking , reading and writing skills . the high affective filter inhibited their motivation to some extent . it was also found that proper extracurricular learning might have a positive effect on teaching and learning 可是，他们没有认识到英语学习的特点，课外时间大多花在做选择题上，而忽视听、说、读、写的实践，部分学生过度焦虑，心理素质差，有些学生甚至产生了厌学情绪。
( 7 ) in order to establish a feeeder - free system in porcine eg culture , we put pgcs on sto feeder layer , on sto extracellular matrix or on 0 . 1 % gelatin in brl - cm , and the results showed that when pgcs cultured on sto feeder , the brl - cm had a positive effect on keeping the undifferent state of eg colonies ( 7 )对非饲养层培养系统培养猪pgc进行了初步探索。实验结果证明，以sto为饲养层，培养液中加条件培养基对猪eg细胞保持不分化状态有积极作用，但培养板底铺有sto基质或明胶，即使用条件培养基也没有获得典型的eg集落。
Conclusions could be drawn out through a positive analysis of some port companies : the factors that have a positive effect on the strategic target are the rate of main business return , the velocity of the assets , while the capital structure and the rate of the increase of the increase of investment have little effect , which illuminate that the port company should focus on the main business to enhance the return of net assets , it also shows that the business of the list port companies is over - concentrated , and should be diversified to lessen the operating risk ; the companies should accelerates the turnover speed of the assets ; the appropriate structure of the assets can bring benefit to a company , but the ultimate approach to enhance the return of the net assets is to look for items with high return ; the sightless investment made the increasing speed of return lag behind the expanding speed of the capital ; and result in no scale economic benefit 本文通过对部分港口类企业进行计量分析后发现港口企业的资本结构和投资对净资产收益率没有显著的影响，而港口企业收入过分集中。针对未来财务环境发生的变化，本文从战略财务管理的角度对南京港口集团公司提出以下建议：在投资领域，今后应以综合物流为契机，专业化与多元化并重；适度发展集团化经营；优化资源配置，提高资产营运效率。在融资领域，要合理选择融资渠道，降低融资成本，更多关注债务融资；确定合理的资本结构，控制负债风险，建立偿债保障机制。
After a long period , sewerage enhancements in the district along with pollution control programmes began to have a positive effect on water quality , and in the 1990s the water quality at castle peak beach improved steadily . the beach was first ranked fair in 1999 , and has maintained this ranking ever since 随政府多年来的努力，区内污水收集设施日趋完善，加上多项污染管制计划亦逐渐取得成效，水质遂稳步改善，到了1990年代，青山湾水质持续好转， 1999年首次获得一般的全年级别，此后一直维持这个级别。
Under this circumstance , it ' s very necessary to manage the businesses and draw up the operating strategy , especially financial strategy beforehand according to the international standard . conclusions could be drawn out through a positive analysis of the list shipping companies : the factors that have a positive effect on the strategic target are the rate of main business return , the velocity of the assets , while the capital structure and the rate of the increase of investment have little effect 本文所做的主要努力在于首先对财务管理战略进行了系统综述，并针对航运业的行业特征提出了财务战略管理的要点，然后以上市航运企业的数据为样本，对影响航运企业净资产收益率的因素进行了分析，最后结合我国加入wto后财务环境可能的变化，从财务战略的角度给出了对策。
It is also said to have a positive effect on the respiratory system and helps to prevent colds , tuberculosis , and many other ailments that effect the lungs . golden topaz in particular is said to aid tissue regeneration , and to strengthen the liver , gallbladder , spleen , digestive organs , and nervous system 黄玉可带给人活力及乐观极向上的心；可防火灾及意外。可吸引爱情接近，可治胃寒及消化不良的肠胃问题，也可协助减肥。可加强分析力及推理能力，增加聪明才智、敏感度和反应力。
It was also found that after - class activities might have a positive effect on teaching and learning . although most teachers and students had positive attitudes towards after - class activities , their understanding was not profound enough and as a result they neglected the role of after - class activities 总之，在中学英语教学中，英语课外活动是对课堂教学的一种必不可少的、有益的补充，它能有效地促进课堂教学，提高中学英语教学的质量，从而为实现英语教学的最终目标即培养交际能力打下良好的基础。
