【急】【急】【急】求一道证券投资学的课后习题答案。 债券持有期收益率是指买入债券后持有一段时间，又在债券到期前将其出售而得到的收益(包括持有债券期间的利息收入和资本损益)，与买入债券的实际价格之比率.公式：持有期收益率=（出售价格-购买价格+利息额）/购买价格×100%[(150-120)+20]/120×100%42%
新概念二册课后练习题答案？ Lesson1.1.(b)2.(c)3.(b)4.(d)5.(c)6.(a)7.(d)8.(b)9.(a)10.(c)11.(c)12.(c)Lesson2.1.(c)2.(d)3.(c)4.(c)5.(a)6.(b)7.(b)8.(a)9.(d)10.(c)11.(d)12.(b)Lesson3.1.(c)2.(a)3.(c)4.(a)5.(d)6.(b)7.(c)8.(c)9.(b)10.(a)11.(b)12.(b)Lesson4.1.(d)2.(b)3.(a)4.(b)5.(b)6.(a)7.(c)8.(b)9.(c)10.(a)11.(c)12.(c)Lesson5.1.(c)2.(a)3.(d)4.(b)5.(c)6.(d)7.(a)8.(b)9.(c)10.(b)11.(a)12.(d)Lesson6.1.(d)2.(a)3.(c)4.(d)5.(d)6.(a)7.(d)8.(a)9.(b)10.(a)11.(d)12.(a)Lesson7.1.(b)2.(c)3.(c)4.(d)5.(a)6.(c)7.(d)8.(a)9.(c)10.(b)11.(a)12.(b)Lesson8.1.(d)2.(b)3.(b)4.(a)5.(c)6.(c)7.(b)8.(b)9.(a)10.(d)11.(b)12.(b)Lesson9.1.(b)2.(b)3.(d)4.(a)5.(a)6.(b)7.(b)8.(d)9.(b)10.(b)11.(d)12.(c)Lesson10.1.(a)2.(d)3.(d)4.(c)5.(b)6.(c)7.(a)8.(c)9.(a)10.(c)11.(c)12.(a)Lesson11.1.(b)2.(b)3.(b)4.(a)5.(b)6.(c)7.(c)8.(a)9.(c)10.(c)11.(b)12.(d)Lesson12.1.(c)2.(c)3.(a)4.(d)5.(d)6.(a)7.(d)8.(a)9.(c)10.(d)11.(a)12.(a)Lesson13.1.(b)2.(d)3.(b)4.(c)5.(a)6.(b)7.(b)8.(c)9.(a)10.(a)11.(a)12.(d)Lesson14.1.(b)2.(c)3.(a)4.(c)5.(d)6.(b)7.(c)8.(b)9.(c)10.(b)。
人教版五年级上册课后练习题答案 （1）说明鲸不仅吃虾和小鱼，还会吃其他的东西.（2）鲸隔一段时间不呼吸不行.（3）说明鲸有时候会独居.我的启发：写句子时候的用词很重要，稍有不慎，很容易颠倒句子的意思.
