单选题 Please present original B/L for cargo taking. B/L refers to（ ）

单选题 The cooperation term commences on the date of official signing. The word means（ ）

单选题 Delivery time: on or before December 20. The clause means（ ）

单选题 Both sides shall abide by the trade agreement.（主语为人）（ ）

单选题 Contract: The parties shall perform their respective obligations strictly. 句中shall法律释义为（ ）

单选题 All costs arising from wrong delivery shall be borne by the seller. The phrase means（ ）

单选题 Both parties agree to change the payment term to T/T. 标准译法（ ）

单选题 Hereby, we confirm the above cooperation terms. 法律副词（ ）

单选题 All trade behaviors must comply with national laws.（主语为事物）（ ）