A. SHIPMENT ON DEC.31,2021 B. SHIPMENT ON OR BEFORE DEC.31,2019 C. SHIPMENT DURING NOV/Dec,2020 D. SHIPMENT WITHIN 30 DAYS AFTER RECEIPT OF L/C
A. Shipper B. Consignee or Order C. Notify Party D. Carrier
A. 对 B. 错
A. 子程序 B. 中断程序 C. 主程序 D. 程序模块