安全规程中规定，膨胀干燥机每次启动的时间间隙为（）分钟.
A.5
B.10
C.20
参考答案：C
All else being equal, an increase in the number of days payable will most likely cause a company's cash conversion cycle to:（）
A. increase.
B. remain the same.
C. decrease.
