不会造成解吸塔塔釜温度高的原因是()。
A、直接蒸汽过多
B、再沸器蒸汽过多
C、蒸汽系统压力上升
D、塔顶回流温度低
参考答案:D
距肛缘4~5cm的直肠癌,最常用的手术方式是
A.经腹会阴联合直肠癌根治术
B.经腹直肠痛切除,远端封闭,近端造瘙术
C.经直肠镜肿瘤切除术
D.拉下式直肠癌切除术
E.直肠前切除术,
What is the most appropriate term when the seller must pay the cost and freight necessary to bring the goods to the named port of destination by a roll-on/roll-off vessel()
A.FOB
B.FCA
C.CIF
D.CPT