当自喷井结蜡严重时，应使用（）清蜡的方法清蜡。

A、化学

B、热洗

C、井下作业

D、钻头

An analyst does research about a company's earnings and gathers the following information about the company:
·Earnings per share is $1.20
·Price-to-earnings ratio is 17
·Book value per share is $16
·Market value per share is $18

All else being equal, if the company funds a share repurchase using debt with an after-tax cost of 6.5%, the company's EPS will most likely:A. decrease.
B. remain the same.
C. increase.