下列各项不影响口服胆囊造影的是（）

A.禁食

B.改变体位

C.腹泻

D.黄疸

E.胆囊管闭塞

An analyst does research about a company's inventory management. The company reports a more inventory turnover ratio than the average for its industry. All else being equal, which of the following statements is m.ost accurate

A. This difference is explained by excessive inventory bajance by the company.
B. This difference results in a longer cash conversion cycle for the company.
C. This difference is explained by effective inventory management by the company.