目前，我国居民储蓄余额突破43万亿元，成为全球储蓄总额和人均储蓄都最多的国家。与此存

教学评价的标准应根据不同学科、不同课型的具体特点而有所差异。

从楼上抛下的西瓜皮在下落过程中逐渐增大的物理量是（不计空气阻力）：[ ]

A．重力势能

B．动能

C．重力

D．密度

CAD指的是( )。

A．计算机辅助制造

B．计算机辅助教育

C．计算机集成制造系统

D．计算机辅助设计

During a recent in-house seminar at United Banks of Davos, Helmut Fahrstadt, the seminar leader, was discussing the business cycle and its phases. He made the following statement: "During a recession one should expect an economy’s real GDP to increase, its rate of inflation to increase, and its rate of employment to fall. " Is the statement made by Fahrstadt correct as it pertains to real GDP, inflation and the rate of employmentReal GDP Rate of Inflation Rate of Employment（）①A. Correct Incorrect Incorrect ②B. Incorrect Correct Incorrect ③C. Incorrect Incorrect Correct

A. ①

B. ②

C. ③

验电器的正确使用（）。

A.验电应使用相应电压等级、合格的接触式验电器

B.验电前，应仔细进行外观检查

C.验电时，人体应与被验电设备保持规程规定的距离，并设专人监护

D.使用伸缩式验电器时，应保证绝缘的有效长度