分流道的截面形状有（）。A.圆形 B.半圆形 C.梯形 D.U形 E.X形

简述气相色谱的进样技术。

Aldo is a manufacturer of specialist bottles with his factory in Italy. Bod is a Greek olive grower. Aldo entered into a contract with Bod to supply him with 10,000 bottles for his upcoming olive pressing. The bottles were specially made and packed by Aldo and as they were sold ‘ex works’ Bod arranged for a carrier to deliver the bottles to his warehouse in Greece. When the bottles arrived with Bod it was immediately apparent that they could not be used. They had been inadequately packed and many of them had been broken and the others had become contaminated during the journey from Italy to Greece and so could not be used as olive oil bottles.Bod immediately contacted Aldo to inform him that he would not pay for the bottles and that he would be getting replacements from a local supplier, although at a higher price. Aldo replied that he was not responsible for the damage, as it had occurred during the transportation of the bottles and he insists on full payment from Bod.Required:Advise Aldo and Bod as to their rights and liabilities under the UN Convention on Contracts for the International Sale of Goods, which may be assumed to apply to the transaction. (10 marks)

选择区域中框选方式有哪几种（）

A、矩形

B、圆形

C、多边形

D、套索

肺癌所致阻塞性肺炎有以下临床征象，除了（）

A.患者一般不发热或仅有低热

B.血白细胞计数常不增高

C.抗生素治疗后炎症很快吸收消散

D.经抗生素治疗炎症吸收后出现肿块阴影

E.短期内同一部位可反复出现炎症

当需要对方立即反馈时，（）是不属于快捷的方式。

A.电话

B.电子邮件

C.个人拜访

D.回信