亚临界汽轮机
参考答案：
主蒸汽压力接近于临界压力（一般高于16.0MPa，又低于临界压力22.1MPA.的汽轮机。
Kristen Chandler, CFA, has been doing research about different types of goods. Which of the following goods has a positively sloped demand curve as a result of the negative income effect overweighting the positive substitution effect（）
A. Veblen.
B. Giffen.
C. Inferior.
膀胱癌术后灌注化疗药物时错误的是（ ）
A．每次用量>100ml
B．严格无菌操作
C．吸出的液体不可回注
D．注药前应先排尽尿液
E．灌注后暂不排尿
