Which of the following transactions is least likely to increase a company’s reported cash from operations（）

A. Securitizing accounts receivable.

B. Delaying payments made to suppliers.

C. Using short-term debt to reduce an existing account payable.

自力式压力调节器的调节阀分（）两种。

A.A型和B型

B.气开式和气关式

C.单座和双座

D.膜头式和活塞式