铝套管电缆直通头接续时，12x4电缆甲端电缆外护套到已端电缆外护套距离（）。
A. 800mm
B. 820mm
C. 830mm
D. 840mm
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同城票据清算业务中，应由专人每日与中行往来账户进行对账，保证账账相符。
A. 正确
B. 错误
A Channel Manager utilizing the Commerce Accelerator functions could perform which of the following tasks against a Channel hub？（）
A. View products， categories， bundles and kits for the catalog
B. List distributors for the reseller hub
Create or delete a distributor service agreement
D. Create or delete e-Marketing Spot
电联结按其用途分为横向和纵向两种电联结。
A. 正确
B. 错误
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