回归热可累及机体多个脏器，但受累最重的器官常是（）
A.肾脏
B.心脏
C.脑组织
D.肝脏
E.脾脏
参考答案：E
The importer will normally require the exporter to present shipped on board B/L, for it provides better guarantee for both negotiating bank and the consignee. （）
泛油
