(多选)根据《合同法》的规定,要约失效的原因主要是
A. 拒绝要约的通知到达要约人
B. 要约人依法撤回要约
C. 承诺期限届满,受要约人作出承诺
D. 受要约人对要约的内容作出实质性变更
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(多选)数据电文根据双方约定需要确认收讫,但未约定确认收讫方式的,收件人可以( )向发件人表明该数据电文已经收到
A. 通过任何方式
B. 通过任何行为
C. 在任何时间内
D. 通过双方约定的方式
(多选)发件人收到收件人的收讫确认,即可
A. 推定有关数据电文已由收件人收到
B. 此项推定表示该数据电文与所收到的电文相符
C. 此项推定并不表示该数据电文与所收到的电文相符
D. 此项推定表示收件人同意数据电文的内容
The following are all types of costs associated with management information. Which of the following is example of direct data capture costs?
A. Use of bar coding and scanners
B. Payroll department's processing of personal costs
Completion of timesheets by employees
D. Input of data into the production system
Information is data that has been processed in such a way as to be meaningful to the person who receives it.
A. 对
B. 错