关于急性坏死性胰腺炎，错误的是（）

A.可选用硬膜外阻滞

B.常伴水电解质平衡紊乱

C.常伴高钙血症

D.可发生循环衰竭

E.容易诱发肺间质水肿

Normally, increases in the price of a product decrease its sales except when the price increase accompanies an improvement in the product. Wine is unusual, however. Often increases in the price of a particular producer’s wine will result in increased sales, even when the wine itself is unchanged.
Which of the following, if true, does most to explain the anomaly described above

A．The retail wine market is characterized by an extremely wide range of competing products.

B．Many consumers make decisions about which wines to purchase on the basis of reviews of wine published in books and periodicals.

C．Consumers selecting wine in a store often use the price charged as their main guide to the wine’s quality.

D．Wine retailers and producers can generally increase the sales of a particular wine temporarily by introducing a price discount.

E．(E) Consumers who purchase wine regularly generally have p opinions about which wines they prefer.