环境电离辐射按照电离辐射的照射方式可分为内照射与外照射、局部照射与全身照射,下...

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环境电离辐射按照电离辐射的照射方式可分为内照射与外照射、局部照射与全身照射,下列说法不正确的是:()

内照射的效应以射程短、电离强的 α 、 β 射线作用为主。

外照射的射线照射身体某一部位，引起局部细胞的反应称局部照射。局部照射时身体各部位的辐射敏感性依次为腹部＞胸部＞头部＞四肢。

当全身均匀地或非均匀地受到照射而产生全身效应时称全身照射。

辐射源由体外照射人体称外照射，包括 γ 射线、中子、 X 射线等穿透力强的射线，外照射的生物学效应较弱。

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【单选题】Net present value:

is the best method of analyzing mutually exclusive projects.

is less useful than the internal rate of return when comparing different sized projects.

is the easiest method of evaluation for non-financial managers to use.

is less useful than the profitability index when comparing mutually exclusive projects.

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【单选题】有一函数 ,以下程序段中错误的是。

if(x>0) y=1; else if(x==0) y=0; else y=-1;

y=0; if(x>0) y=1; else if(x<0) y=-1;

y=0; if(x>=0) ; if(x>0) y=1; else y=-1;

if(x>=0) if(x>0) y=1; else y=0; else y=-1;

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【简答题】Land tends to be used for the activity that generates the ______ net present value of future satisfaction to the owner.

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【单选题】Net present value:

is the best method of analyzing mutually exclusive projects.

is the easiest method of evaluation for non-financial managers to use.

is less useful than the profitability index when comparing mutually exclusive projects.

is very similar in its methodology to the average accounting return.

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【判断题】分期收款业务处理和普通销售业务处理一样,做的单据没什么区别。

正确

错误

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【单选题】The net present value:

decreases as the required rate of return increases.

is equal to the initial investment when the internal rate of return is equal to the required return.

cannot be applied to mutually exclusive projects.

is directly related to the discount rate.

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【单选题】According to the net present value rule, an investment in a project should be made if the:

Net present value is greater than the cost of investment

Net present value is greater than the present value of cash flows

Net present value is positive

Net present value is negative

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【单选题】有以下程序片段 y=-1; if(x!=0) if(x>0)y=1; else y=0; 其能正确表示的数学函数关系是

y=-1(x<0) y="1(x">0)

y=1(x<0) y="0(x">0)

y=0(x<0) y="1(x">0)

y=-1(x<0) y="0(x">0)

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【简答题】(c) Discuss the reasons why the net present value investment appraisal method is preferred to other investment appraisal methods such as payback, return on capital employed and internal rate of return...

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【单选题】The decision rule for net present value is to:

accept all projects with cash inflows exceeding the initial cost.

reject all projects lasting longer than 10 years.

reject all projects with rates of return exceeding the opportunity cost of capital.

accept all projects with positive net present values.

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相关题目：

【单选题】Net present value:

is the best method of analyzing mutually exclusive projects.

is less useful than the internal rate of return when comparing different sized projects.

is the easiest method of evaluation for non-financial managers to use.

is less useful than the profitability index when comparing mutually exclusive projects.

查看完整题目与答案

【单选题】有一函数 ,以下程序段中错误的是。

if(x>0) y=1; else if(x==0) y=0; else y=-1;

y=0; if(x>0) y=1; else if(x<0) y=-1;

y=0; if(x>=0) ; if(x>0) y=1; else y=-1;

if(x>=0) if(x>0) y=1; else y=0; else y=-1;

查看完整题目与答案

【简答题】Land tends to be used for the activity that generates the ______ net present value of future satisfaction to the owner.

查看完整题目与答案

【单选题】Net present value:

is the best method of analyzing mutually exclusive projects.

is the easiest method of evaluation for non-financial managers to use.

is less useful than the profitability index when comparing mutually exclusive projects.

查看完整题目与答案

【判断题】分期收款业务处理和普通销售业务处理一样,做的单据没什么区别。

正确

错误

查看完整题目与答案

【单选题】The net present value:

decreases as the required rate of return increases.

is equal to the initial investment when the internal rate of return is equal to the required return.

cannot be applied to mutually exclusive projects.

查看完整题目与答案

【单选题】According to the net present value rule, an investment in a project should be made if the:

Net present value is greater than the cost of investment

Net present value is greater than the present value of cash flows

Net present value is positive

Net present value is negative

查看完整题目与答案

【单选题】有以下程序片段 y=-1; if(x!=0) if(x>0)y=1; else y=0; 其能正确表示的数学函数关系是

查看完整题目与答案

【单选题】The decision rule for net present value is to:

accept all projects with cash inflows exceeding the initial cost.

reject all projects lasting longer than 10 years.

reject all projects with rates of return exceeding the opportunity cost of capital.

accept all projects with positive net present values.

查看完整题目与答案

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