下单是指客户根据自己的需要向商品或服务提供方声明自己的购买要求并给出相应的承诺,不同的市场机制下单方式不尽相同,下列哪种情况属于由你定价机制的下单方式().
A. 将选定的商品放入购物车,并在确认数量、支付配送方式和交货地点后将结果提交给销售商
B. 参与竞价
C. 客户描述出自己的需求及愿意接受的价格
D. 描述出自己的需求并请求供应商参与竞价
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由于发达国家和发展中国家在减排责任、资金支持和监督机制等议题上分歧严重,在联合国气候变化大会后只达成不具法律约束力的《哥本哈根协议》。这表明,维护国家利益是主权国家()
A. 合作的基础
B. 处理国内事务的依据
C. 对外活动的出发点
D. 处理国际关系的基本准则
You decided to change the location of the flash recovery area. You executed the following command: ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’+disk1’ SCOPE=BOTH SID=’*’; Which statement is true?()
A. The location can be changed only if the flash recovery area is empty.
B. After executing the command, all new flash recovery area files will be created in the new location.
C. The command will generate an error because you cannot change the flash recovery area while the database is open.
D. All the existing files in the flash recovery area will be moved to the new location and all new Flash Recovery Area files will be created in the new location.
感光乳剂涂布不均则()
A. 无法晒版
B. 版面没有影响
C. 版膜厚度不均
D. 不影响印纹