政府内网与政府外网要()隔离,政府外网与互联网通过()隔离而连通。
查看答案
C620-1型车床的变速应采用()。
A. 电动机
B. 电磁离合器
C. 用摩擦离合器进行机械变速
D. 机械和电器联合变速
Derek has created a view in the products.nsf database. Derek wants the markup column in the view to display the selling price of the cost. He wants this value to display in currency. Which one of the following should derekl do? ()
A. use the @currenty in thr column formula in the view
B. Select currency on the numbers tab in the view properties box
C. Select currency on the numbers tab in the column properties box
D. Select currency on the numbers tab in the field properties box&e