第16题: [单项选择]The thermal expansion valve reacts directly to the () A. temperature in the space being cooled B. liquid refrigerant pressure at the solenoid valve C. pressure drop across the evaporator coils D. refrigerant gas superheat at the coil outlet 参考答案:D
第19题: [单项选择]移植肾摘取时,肾脏灌流量应控制在 A. 250ml B. 50ml C. 500ml以上 D. 500~1000ml E. 大于1000ml 参考答案:A 答案解析:[解题思路] 关于肾脏的灌流,大量的文献中有明确的统计,即>500ml,其术中早期排尿率<70%;250ml灌流量术中早期排尿率>90%,用量过少,灌注不充分。