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问题 选择题

安全用药事关人体健康，下列有关安全用药的叙述，正确的是[ ]

A．贵药更安全，应是病人首选药

B．中药无副作用，常吃可防病

C．增加甩药剂量，能缩短治疗时间

D．处方药一定要按医嘱服用

答案

答案：D

单项选择题

下面关于8259A可编程中断控制器的叙述中，正确的是( )。

A．8259A的7个命令字由初始化命令字ICW1～4及操作命令字OCW1～3组成
B．8259A有7个端口
C．初始化命令字不必按一定的顺序写入8259A
D．操作命令字不必按一定的顺序写入8259A
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问答题

The ABC Bank Irrevocable documentary credit Number: LC123-258866 Date: August 24,1999 Date and place of expiry : October 30, 1999 China Advising bank: Bank of China Beneficiary: China XYZ import and export corp. Applicant: UVW corporation. Amount: USD52,500 (Say U.S Dollars fifty two thousand five hundred only) We hereby issue irrevocable documentary credit which is available with: Any bank By negotiation of beneficiary’s drafts at sight For full invoice value Drawn on the ABC bank Partial shipments: Not allowed Transshipment: Not allowed Shipment from: Shanghai To: Tokyo Japan At the latest: October 15, 1999 Following documents required: +Signed commercial invoice in three copies +Full set of clean on board ocean bill of lading +Weight certificate in two copies Covering: 100 metric tons (5PCT MOL) of XY chemical in drums at USD 500 per M/T. Special instructions: Insurance to be effected by buyer. Instructions to advising bank: Please advise this credit to the beneficiary We hereby undertake that drawers, endorsers in compliance with the terms of this credit will be duly honored upon presentation to the drawee bank. Authorized signature 一、根据上述信用证，回答下列问题

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