IEEE802.11定义了无线局域网的两种工作模式，其中的（208)模式是一种点对点连接的网络，不需要无线

Range estimating in determining cost risk probabilities requires _____ .

A an amount of financial exposure.

B risks and opportunities ranked in order of bottom line importance

C contingency requirements for expected level of confidence

D probability of cost overrun occurrences

E All of the above.

137 Range estimating in determining cost risk probabilities requires _____ .

A. an amount of financial exposure.

B. risks and opportunities ranked in order of bottom line importance

C. contingency requirements for expected level of confidence

D. probability of cost overrun occurrences

E. All of the above

84 In which of the following cost estimating techniques are statistics models used:

A. nonparametric cost estimating

B. parametric cost estimating

C. life cycle cost estimating

D. bottom-up estimating

E. All of the above.

In which of the following cost estimating techniques are statistics models used:

A . nonparametric cost estimating

B . parametric cost estimating

C . life cycle cost estimating

D . bottom-up estimating

E . All of the above.

166 In which of the following cost estimating techniques are statistics models used:

A. nonparametric cost estimating

B. parametric cost estimating

C. life cycle cost estimating

D. bottom-up estimating

E. All of the above

Cost management includes:

A . Cost estimating/forecasting.

B . Cost budgeting/cost control.

C . Cost applications.

D . All of the above.

E . A and B only.

180 Cost management includes:

A. Cost estimating/forecasting.

B. Cost budgeting/cost control.

C. Cost applications.

D. All of the above.

E. A and B only

98 Cost management includes:

A. Cost estimating/forecasting.

B. Cost budgeting/cost control.

C. Cost applications.

D. All of the above.

E. A and B only

Estimating schedule activity costs involves developing an (1) of the cost of theresources needed to complete each schedule activity. Cost estimating includes identifying and considering various costing alternatives. for example, in most application areas, additionalwork during a design phase is widely held to have the potential for reducing the cost of the execution phase and product operations. the cost estimating process considers whether the expected savings can offset the cost of the additional design work. cost estimates are generally expressed in units of (2) to facilitate comparisons both within and across projects.the (3) describes important information about project requirement that is considered during cost estimating.

空白（1）处填（）

A. accuracy

B. approximation

C. specification

D. summary

Estimating schedule activity costs involves developing an(4)of the cost of the resources needed to complete each schedule activity. Cost estimating includes identifying and considering various costing alternatives. For example, in mostapplication areas, additional work during a design phase is widely held to have the potential for reducing the cost of the execution phase and product operations. The cost estimating process considers whether the expected savings can offset the cost of the additional design work. Cost estmates are generally expressed in units of(5)to facilitate comparisions both within and across projects. The(6)describes important information about project requirement that is considered during cost estimating.

A．accuracy

B．approxination

C．specification

D．summary