某公司预计本年度的有关资料如下:①息税前利润800万元;②所得税率40%;③预期普通股报酬率15%;④总负债200万元,均为长期债券,平均利息率10%;⑤发行股数60万股,每股市价20元;⑥长期资产为500万元,其中固定资产为350万元,无形资产50万元,长期投资100万元;⑦流动资产为300万元,其中现金50万元,应收账款150万元,存货100万元。 要求: (1) 计算该公司预计的总资产报酬率和长期资产适合率(期初资产为800万元)。 (2) 预计该公司本年所有净利润的50%用于发放股利,预期以后采用逐年稳定增长的股利政策,股利逐年增长率为5%,要求利用股票估价模型确定股票价值。 (3) 计算该公司的加权平均资金成本。 (4) 该公司可以增加400万元的负债,使负债总额成为600万元。假定此项举措将使总负债平均利息率上升至12%,股票市价降低为18元,每股股利及股利逐年增长率保持不变,总资产报酬率保持不变,试用比较资金成本法确定该公司应否改变资金结构。 (5) 试计算该公司资本结构改变前后的财务杠杆系数和已获利息倍数。
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“留守儿童”在当前社会已成为一个特殊的社会群体,日益引起社会的关注。根据有关调查数据显示,“留守儿童”多于流动儿童,而且留守儿童中女童的比例高于男童,其中高达12%的留守儿童都有偏差行为发生。社会工作者为了全面、深入地了解农村“留守儿童”的家庭教育失控对留守儿童行为的影响,打算对此作一研究,则社会工作者最应采用的研究方法是()。
A. 实验研究
B. 个案研究
C. 行动研究
D. 问卷调查
Singing Alarms Could Save the Blind If you cannot see, you may not be able to find your way out of a burning building and that could be fatal. A company in Leeds could change all that (51) directional sound alarms capable of guiding you to the exit. Sound Alert, a company (52) the University of Leeds, is installing the alarms in a residential home for (53) people in Sommerset and a resource centre for the blind in Columbia. (54) produce a wide range of frequencies that enable the brain to determine where the (55) is coming from. Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be (56) by humans. "It’s a burst of white noise (57) people say sounds like static on the radio," she says. "Its life-saving potential is great." She conducted an experiment in which people were filmed by thermal-imaging cameras trying to find their way out of a large (58) room. It (59) them nearly four minutes to find the door (60) a sound alarm, but only 15 seconds with one. Withington studies how the brain (61) sounds at the university. She says that the (62) of a wide band of frequencies can be pinpointed more easily than the source of a narrow band. Alarms (63) the same concept have already been installed on emergency vehicles. The alarms will also include rising or falling frequencies to indicate whether people should go up (64) down stairs. They were (65) with the aid of a large grant from British Nuclear Fuels.
A. or
B. and
C. but
D. otherwise
Diet Persons who are overweight should watch their diet carefully in order to lose pounds. The best way to do this is to start a weight control program. At first it is wise to talk with your doctor. He can advise you of the number of calories you should have in your meals each day. He can tell you about exercising while on your diet. A good rule is to lose slowly. A loss of a pound or two is plenty. Plan meals around foods you know. This means that it is wise to include foods that you are used to and that are part of your regular eating habits. When you have lost the weight you wish, Simple items can be added to your diet so that you can maintain the weight you want. While you are dieting, try to build a pattern of eating that you can follow later to maintain your desired weight. When dieting, choose low-calorie foods. Avoid such items as fats, fried food, sweets, cakes, cream and soft drinks. Try to take coffee and tea without sugar or cream. Snacks can be part of your diet. For example, a piece of fruit or a simple dessert saved from mealtime can be eaten between meals. Keep busy! This way you will not be tempted to go off the diet. Make full use of opportunities to exercise. Try walking instead of riding whenever possible. Happy dieting! If you want to start a weight control program, you should______.
A. ask your doctor
B. plan meals and choose low-calorie foods
C. do some exercise
D. all of the above
不久前社会工作者晓峰的服务对象廖女士向她抱怨,她两岁的儿子洋洋太不懂事,总是偷偷地吃不满一岁的妹妹的零食,弄得她每次哄女儿时总是手足无措。你认为下列哪项最能帮助晓峰贴切的解释洋洋的行为()
A. 洋洋有一定的行为障碍,需要矫正
B. 洋洋可能不喜欢妹妹,所以故意这么做,可以理解
C. 3岁前的婴幼儿基本上是自我中心的,还难以从他人的立场考虑问题,洋洋的行为很正常
D. 可能是廖女士给洋洋讲的道理不够,可以多给洋洋讲道理,让他理解其行为给妹妹带来的不便