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【单选题】
比较甲、乙两地20年来冠心病和恶性肿瘤死亡率的上升速度,最好选用A.
直方图
B.
线图
C.
半对数线图
D.
散点图
E.
直条图
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举一反三
【简答题】某息票债券,面值为1000元,3年到期,息票率8%,利息支付一年一次,假设到期收益率为8%,试计算久期。(保留两位小数,答案只写数字)
【单选题】某公司发行债券，债券面值为1000元，票面利率5%，每年付息一次，到期还本，债券发行价1010元，筹资费为发行价的2%，企业所得税税率为40%，则该债券的资金成本为（ ）。
A.
3.06%
B.
3%
C.
3.O3%
D.
3.12%
【单选题】某3年期债券面值为1000元，息票率为10%，1年付息1次，当前售价为1010.80元，则该债券的到期收益率为()。
A.
10%
B.
8.66%
C.
9.75%
D.
9.57%
【单选题】某公司发行债券，债券面值为1000元，票面利率5%，每年付息一次，到期还本，债券发行价1010元，筹资费为发行价的2%，企业所得税税率为40%，则该债券的资本成本为( )。(不考虑时间价值)
A.
3.06%
B.
3%
C.
3.03%
D.
0.0312
【单选题】Why do many women in rich countries compromise by having only one child?
A.
Small families are becoming more fashionable.
B.
They find it hard to balance career and family.
C.
It is too expensive to support a large family.
D.
Child care is too big a problem for them.
【简答题】原组织的飞数应符合三个条件()、()和()。
【简答题】某公司发行4年期，年息票利率为8％，面值为1000元，每年付息的债券，若1年期零息债券的到期收益率为4．5％，2年期零息债券的到期收益率为5％，3年期零息债券的到期收益率为5．5％，4年期零息债券的到期收益率为6％。 要求： (1)计算无风险情况下息票债券的价格及无风险情况下息票债券的到期收益率。 (2)若公司存在信用风险，投资者预计前3年利息可以全部收到，但预计第4年有50％的可能公司偿付全部本...
【单选题】Why do some countries permit lotteries to be held?
A.
The proceeds of lotteries can be used to benefit charities.
B.
Lotteries can satisfy the dreams of the poor to get rich quick.
C.
Lotteries are a harmless form. of gambling.
D.
It is a form. of gambling permitted by most religions.
【单选题】听力原文：Why do some health care workers leave those poor countries? (31)
A.
Because they will get better training in other countries.
B.
Because they cannot cope with the large population in poor countries.
C.
Because they will get better payment in rich countries.
D.
Because they prefer working in cities to working in countryside.
【单选题】Why do people in wealthy countries prefer to have fewer children?
A.
They want to further improve their economic well-being.
B.
They cannot afford the time and expenses of rearing children.
C.
They are concerned about the future of the coming generation.
D.
They dont rely on their children to support them in old age.
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