已知某工作总时差为8天,最迟完成时间为第16天,最早开始时间为第7天,则该工作的持续时间为( )。
A.8天 B.7天C.4天 D.1天
参考答案:D
辛味的作用有
A.发散
B.行气
C.活血
D.以上均对
In the foreign trade business, the trade terms CFR is often used. CFR is the abbreviation for ().
A. Commercial Invoice
B. Cost, insurance and freight
C. Cost and freight
D. Carriage paid to