企业年金的分类，根据（）不同，企业年金计划可分为积累制的和现收现付制的。 A.创立主

如图所示，甲是一个带正电的小物块，乙是一个不带电的绝缘长方体物块，甲、乙叠放在一起静置于粗糙的水平地板上，地板上方空间有水平方向的匀强磁场．现用水平恒力拉乙物块，使甲、乙无相对滑动地一起水平向左加速运动，在加速运动过程中（　　）

A．乙物块与地之间的摩擦力大小不变

B．甲、乙两物块间的摩擦力不断增大

C．甲、乙两物块间的摩擦力大小不变

D．甲、乙两物块间的摩擦力不断减小

考古地质学，是借用地质（）学对地层的研究原理，在田野考古发掘中，科学地取得（）的方法，也是考古学研究中最基础的方法之一。

信用证内容
Department: A SWTO23B01Sep/No: 004951
Message Received On: 2008-05-12/16:56:50
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33062 BOCSH A CN
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(2)根据信用证内容回答下列问题：

开证银行用( )的方式将信用证经过通知银行给受益人。

A．信开

B．快邮

C．电开

通过调整物质利益进而对个人和企业经济行为的调节来引导国民经济的运行，是财政政策的 ( )功能。

A．协调
B．导向
C．控制
D．稳定