新生儿病理性黄疸的原因不包括
A.病毒感染B.细菌感染C.ABO溶血不合D.母乳性黄疸E.新生儿脱水热
参考答案:E
有两台同样的列管式换热器用于冷却气体,在气、液流量及进口温度一定的情况下,为使气体温度降到最低,拟采用()。
A、气体走管内,串联逆流操作
B、气体走管内,并联逆流操作
C、气体走管外,串联逆流操作
D、气体走管外,并联逆流操作
An analyst does research about debt covenants. Which of the following least likely lowers the risk to creditors A debt covenant specifying a minimum level of the borrower's:
A. current ratio.B. dividend payout ratio.C. interest coverage ratio.