新生儿硬肿症发病的内因是()A．体内热量不足，皮下脂肪中饱和脂肪酸含量多 B．体内热

_____ comes from Japan. He speaks ______.

A  Japanese, Japanese    B  Japanese, a Japanese

C  A Japanese , Japanese  D  A Japanese , Japaneses

Which of the following denotes the primary reason that the nurse inserts an indwelling urinary (Foley) catheter in a child with severe burns

A．Monitoring for a urinary tract infection.

B．Measuring urine output accurately.

C．Preventing urinary retention.

D．Assessing urine specific gravity.

诊断扩张型心肌病最重要的条件是

A．心脏四个腔均扩大
B．排除各种病因明确的器质性心脏病
C．心律失常
D．超声心动图证实心脏搏动弥漫性减弱
E．心力衰竭

与心室肌细胞相比，普肯野细胞动作电位的主要特征是

A．平台期时程长
B．幅值大
C．4期膜电位稳定
D．4期自动去极
E．0期除极速度快

APU利用何种介质来冷却APU舱和滑油系统（）

A.燃油

B.空气

C.水

D.以上都不对