低通气指数
参考答案：
低通气指数：平均每小时睡眠中低通气的次数。
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.
尿素
A．分层B．转相C．酸败D．絮凝E．破裂
