预防医学与公共卫生学

生存率(survival rate)

题目

生存率(survival rate)

参考答案和解析
正确答案: 用S(t)表示,是指0时刻存活的个体在t时刻仍存活的概率。随访的起始时间点不同,所得生存率也不同。
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相似问题和答案

第1题:

听力原文:M: The depositors can earn interest on demand deposits, is that right?

W: Yes, but the rate of interest on demand deposits is generally well below the bank's base rate.

Q: What does the woman imply?

(15)

A.The bank's base rate is fixed.

B.The rate on demand deposits is low.

C.The rate on demand deposits is high.

D.The bank's base rate is floating.


正确答案:B
解析:对话中女士提到“活期存款利率远低于银行基本利率”,也就是说活期存款利率很低。

第2题:

Animals have a natural ________ for survival.

A extinction

B distinction

C institution

D instinct


参考答案D

第3题:

___________

[A] life

[B] existence

[C] survival

[D] maintenance


正确答案:C

第4题:

The foremost reason why the egg-based method is defective lies in_____.

[A] the complex process of vaccine production

[B] its potential threat to human being

[C] the low survival rate for new flu vaccines

[D] its contribution to the flu vaccine shortage


正确答案:C

第5题:

The statements concerning nominal and real interest rate are true except that ______.

A.the nominal interest rate is the growth rate of your money

B.the real interest rate is the growth rate of your purchasing power

C.the nominal rate is the real interest rate deducted by the rate of inflation

D.all of the above statements


正确答案:C
解析:名义利率减去通货膨胀率等于实际利率。nominal interest rate名义利率。

第6题:

听力原文:M: What about the interest rate?

W: Well, the discount rate is given in accordance with the terms of the bill, time of discount, the amount, the reputation of the drawee and the drawer.

Q: What are they talking about?

(14)

A.The interest rate of savings account.

B.The discounting rate for drafts.

C.The rediscounting rate.

D.The interest rate for loans.


正确答案:B
解析:根据女士的回答,贴现率是根据单据的款项、贴现的时间和数额及出票人和收票人的信誉来定的,由此可知他们谈论的是汇票的贴现率。

第7题:

单句理解

听力原文:Interest rate risk refers to the exposure of a bank's financial condition to adverse movements in interest rates.

(1)

A.Bank's financial condition is the cause of interest rate risk.

B.Bank's financial condition has impact on interest rate risk.

C.Interest rate risk occurs when interest rate moves against the bank's financial condition.

D.Interest rate risk occurs when interest rate favours the bank's financial condition.


正确答案:C
解析:单句意思为“利率风险是指银行在不利的利率变动中暴露出的财务风险”。A项因果关 系颠倒,B项没有提及,D项“favour”一词与原句“adverse”相矛盾。

第8题:

在链路预算表中,RLC rate 与MAC rate的关系是:

A.RLC rate = MAC rate×90%

B.RLC rate = MAC rate×80%

C.RLC rate = MAC rate×80%


答案:A

第9题:

Which three statements are correct about Rate Limiters? ()(Choose three.)

A. one-rate rate limiters

B. two-rate rate limiters

C. two-rate rate limiters is the default

D. one-rate rate limiters is the default

E. there is no default it must be configured


参考答案:A, B, C

第10题:

A survival craft being used to pick up a person who has fallen overboard from a ship should approach the person ______.

A.at a high rate of speed

B.under oars

C.against the wind

D.with the wind


正确答案:C

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