下列属于内分泌腺的结构是
①卵巢 ②胰腺 ③唾液腺 ④肾上腺 ⑤胰岛 [ ]
A．①②⑤
B．③④⑤
C．①②③
D．①④⑤
D
A company sells its receivables but retains the risk associated with bad debts. When reviewing this company a financial analyst would adjust the company’ s debt-to-equity ratio and its accounts receivable turnover ratio:Debt-to-equity Receivables turnover ①A. Upward Upward ②B. Downward Upward ③C. UpwardDownward
A．
B．
C．
重大质量事故必须在（）内逐级上报由公司参加调查分析和处理。
A、2小时
B、24小时
C、36小时
D、48小时
