量取一定量液体需用 _________ 、 _________ ，倾倒液体试剂时，先将瓶塞 _________ 在桌面上，瓶上标签应 _________ ，试剂瓶口紧靠试管口边缓缓注入．用于搅拌、过滤、引流的是 _________ ．收集或储存少量气体的仪器是 _________ ．

Which of the following would most likely indicate deterioration of a firm's working capital management（）

A. Increased asset turnover.

B. An increase in days of payables outstanding.

C. An increase in days of receivables outstanding.