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公民甲娶妻乙，育有一子一女，女儿丙已经出嫁，儿子娶妻丁，生有一子戊，儿子于5年前不幸遇车祸死亡。甲、乙均年老，无固定生活来源，女儿出嫁后，拒不赡养老人，并曾数度虐待甲、乙，甲、乙主要依靠儿媳丁来供养。甲于2000年3月死亡，留下房屋4间。按照继承法，享有第一顺序继承权的人是（　　）。
A.乙
B.丙
C.丁
D.戊

Some Old Truths to Help You Overcome Tough Times Unfortunately,life is not a bed of roses.We are going through life facing sad experiences.Moreover,we are grieving various kinds of loss:a friendship,a romantic relationship or a house.Hard times may hold you down at what usually seems like the most inopportune time,but you should remember that they won’t last forever.When our time of mourning is over,we press forward,stronger with a greater understanding and respect for life.Furthermore,these losses make us mature and eventually move us toward future opportunities for growth and happiness.I want to share these old truths I’ve learned along the way.41_Fear is both useful and harmful.This normal human reaction is used to protect us by signaling danger and preparing us to deal with it.Unfortunately,people create inner barriers with a help of exaggerating fears.My favorite actor Will Smith once said,“Fear is not real.It is a product of thoughts you create.Do not misunderstand me.Danger is very real.But fear is a choice.”I do completely agree that fears are just the product of our luxuriant imagination.42_If you are surrounded by problems and cannot stop thinking about the past,try to focus on the present moment.Many of us are weighed down by the past or anxious about the future.You may feel guilt over your past,but you are poisoning the present with the things and circumstances you cannot change.Value the present moment and remember how fortunate you are to be alive.Enjoy the beauty of the world around and keep the eyes open to see the possibilities before you.Happiness is not a point of future and not a moment from the past,but a mindset that can be designed into the present.43_Sometimes it is easy to feel bad because you are going through tough times.You can be easily caught up by life problems that you forget to pause and appreciate the things you have.Only strong people prefer to smile and value their life instead of crying and complaining about something.44_No matter how isolated you might feel and how serious the situation is,you should always remember that you are not alone.Try to keep in mind that almost everyone respects and wants to help you if you are trying to make a good change in your life,especially your dearest and nearest people.You may have a circle of friends who provide constant good humor,help and companionship.If you have no friends or relatives,try to participate in several online communities,full of people who are always willing to share advice and encouragement.45_Today many people find it difficult to trust their own opinion and seek balance by gaining objectivity from external sources.This way you devalue your opinion and show that you are incapable of managing your own life.When you are struggling to achieve something important you should believe in yourself and be sure that your decision is the best.You live in your skin,think your own thoughts,have your own values and make your own choices.45选？

A.You are not alone
B.Don’t fear responsibility for your life C.Pave your own unique path
C.Most of your fears are unreal
D.Think about the present moment F.Experience helps you grow
E.There are many things to be grateful for

已知某垄断竞争厂商的长期成本函数为LTC=0.001Q3 -0. 51Q2 +200Q。如果该产品的生产集团内的所有厂商都按相同的比例调整价格，那么，每个厂商的份额需求曲线（即教材第195页图7-9中的d曲线）为P=238 -0. 5Q．求： (1)该厂商长期均衡时的产量与价格。 (2)该厂商长期均衡时主观需求曲线（即教材第195页图7-9中的d曲线）上的需求的价格点弹性值（保留整数部分）。 (3)如果该厂商的主观需求曲线（即教材第195页图7-9中的d曲线）是线性的，推导该厂商长期均衡时的主观需求函数。