（）属于货币类衍生工具。
A. 利率期货
B. 股票期货
C. 货币互换
D. 商品期货
属于二级高危作业的是（）
A. 清仓作业
B. 易燃易爆区域动火作业
C. 吊笼作业
D. 带电作业
对一个客户的多笔出口退税账户托管贷款可以对应一个出口退税专用存款账户，并按照（）的顺序执行还款。
A. “先借后还”
B. “先借先还”
C. 预定期限
D. 申请期限
Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）
At Least one enabled switch port that is unconnected to any device
B. A PC pre-configured with a specific IP Address and Mask
C. A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabled
D. Physical Access to Switch
E. A Switch with no connected device
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