安全防范系统验收时，专家应对（）进行验收。A、技术验收B、施工验收C、资料审核D、前

Which of the following statements most accurately describes why the Global Investment Performance Standards (GIPS) were created To:（）

A. meet the need for a single globally accepted set of investment performance presentation standards.

B. meet the need for a single globally accepted set of regulatory guidelines among developed securities markets.

C. provide comparability of performance results among nations for which no presentation guidelines currently exist.

为执行“二免一补”政策，某地区2006年投入教育经费2500万元，预计2008年投入3600万元，设这两年投入教育经费的年平均增长百分率为x，则下列方程正确的是（   ）

A．2500x²=3600

B．2500(1+x)²=3600

C．2500(1+x%)²=3600

D．2500(1+x)+2500(1+x)²=3600

甲、乙二人同时在当地开办业务相近的公司，甲失败的概率是0.5，乙失败的概率是0.6，若甲成功的情况下乙能够成功的概率是0.3，则甲或乙至少一人成功的概率是（）。

A.0.6

B.0.9

C.0.8

D.0.75

间谍罪

在一个社会形态的经济规律体系中，起着主导作用的经济规律是（）

A.主要经济规律

B.重要经济规律

C.基本经济规律

D.首要经济规律