It has been quite some time since we _______ you at your office in Beijing. (2019-06)
A. visit
B. visited
C. have visited
D. had visited
查看答案
Our clients (surprise)_____________ by the level of support we can offer in such an efficient way. (2016-12)
When they entered the area, the visitors (require)_____________to turn off their smart phones. (2017-12)
Training new staff should ( conduct)_____________ as soon as possible after they are hired. (2018-06)
某企业预测的2019年度赊销额为3300万元,其信用条件是:n/60,变动成本率为60%,资金成本率(或有价证券利息率)为10%,固定成本总额不变,应收账款平均收账天数为60天,坏账损失率为3%,收账费用为40万元,请分别计算这种信用政策下的信用成本前收益、机会成本、坏账损失、信用成本小计和信用成本后收益。