患儿8岁，因周身浮肿7d入院，尿量及尿色基本正常，体检：BP125／85mmHg，周身明显浮肿，心肺听诊正常，腹软，双下肢指压痕明显，为确诊下列哪项检查暂不重要（）

A.血钾，钠测定

B.血胆固醇测定

C.血浆蛋白测定

D.24h尿蛋白测定

E.血清补体测定

During a period of rising price and stable inventory levels, using the LIFO inventory accounting method results in cost of goods sold (COGS) that is:（）

A. less than COGS using the FIFO method.

B. equal to COGS using the FIFO method.

C. greater than COGS using the FIFO method.