三相异步电动机在启动时,若有一相绕组断线电动机启动不起来。
参考答案:对
《近思录》是我国最早的一部哲学文章选集,由哪两位理学家在建阳寒泉精舍共同编纂?()
A.朱熹和吕祖谦
B.游酢与李侗
C.李侗与蔡元定
D.朱熹与黄幹
The nurse is caring for a toddler in respiratory arrest. The nurse will assist with endotracheal intubation and use an uncurled tube because the()
A. vocal cords provide a natural seal.
B. trachea is shorter.
C. larynx is anterior and cephalad.
D. cricoid cartilage is the narrowest part of the larynx.