通常闭合性肾损伤的最好治疗方法是（）。

A.肾周围血肿的早期引流

B.观察和支持疗法

C.用导尿管冲洗肾盂

D.肾造瘘

E.半肾切除

From（）the information concerning the tons per inch or centimeter immersion of a vessel shall be usually found.

A.variation curve

B.dead weight scale

C.table of azimuth

D.freeboard assignment