下列措施可以使蒸发变快的是（ ） A．用笤帚把洒在地上的水向四周扫开 B．把蔬菜

根据样本资料算得健康成人白细胞计数的95%可信区间为7.2×109/L～9.1×109/L，其含义是()

A．估计总体中有95%的观察值在此范围内

B．总体均数在该区间的概率为95%

C．该区间包含样本均数的可能性为95%

D．该区间包含总体均数的可能性为95%

Extreme Programming (XP) is a discipline of software development with(1)of simplicity,communication, feedback and courage.Successful software development is a team effort-not just the development team, but the larger team consisting of customer, management and developers. XP is a simple process that brings these people together and helps them to succeed together. XP is aimed primarily at object-oriented projects using teams of a dozen or fewer programmers in one location. The principles of XP apply to any(2)project that needs to deliver quality software rapidly and flexibly. 　　

An XP project needs a(an)(3)customer to provide guidance.Customers, programmers, managers, are all working(4)to build the system that's needeD. Customers-those who have software that needs to be developed-will leam simple, effective ways to(5)what they need, to be sure that they are getting what they need, and to steer the project to success.

空白（3）处应选择（）

A.part-time

B.casual

C.seldom

D.full-time

在干燥过程中，静止是（）分钟。

比例加载：

声压是衡量声波在传播过程中声音强弱的（）。