对于热水锅炉一般用（）来表明其容量的大小。
A．额定蒸汽量
B．额定压力
C．受热面蒸发率
D．额定热功率
参考答案：D
词形变化：
(1) Good (lucky) to you.
(2) She is a (luck)girl. She gets the job.
(3) (luck), he didn't hurt himself badly.
正常患者使用琥珀胆碱时，血浆K可增加()
A．0.2mEq/L
B．0.5mEq/L
C．1.0mEq/L
D．1.2mEq/L
E．1.8mEq/L
