【单选题】Firefighters are often asked to speak to school and community groups about the importance of fire safety,particularly fire prevention and detection. Because smoke detectors reduce the risk of dying in...
A.
outside fumes may trigger a false alarm.
B.
a draft may create dead-air space.
C.
a draft may pull smoke away from the detector.
D.
outside noises may muffle the sound of the detector.
【判断题】研究幼儿的自我意识发展的经典实验之一是点红实验。
【判断题】“库存现金”科目的明细账是现金日记账,是收付余三栏式序时账簿,由出纳人员根据审核后的原始凭证和记账凭证逐日逐笔序时登记。( )
【判断题】X6132 铣床有纵向、横向和垂向三个方向。
【单选题】脊髓腔穿刺后,病人脑压过低引起疼痛的机制是( )
【判断题】DCS是分散控制系统(Distributed Control System)的简称,国内一般习惯称为集散控制系统。它是一个由过程控制级和过程监控级组成的以通信网络为纽带的多级计算机系统。
【单选题】Firefighters are often asked to speak to school and community groups about the importance of fire safety,particularly fire prevention and detection. Because smoke detectors reduce the risk of dying in...
A.
how firefighters carry out their responsibilities
B.
the proper installation of home smoke detectors
C.
the detection of dead-air space on walls and ceilings
D.
how smoke detectors prevent fires in homes
【判断题】现金及银行存款日记账不论是采用多栏式或三栏式,都是由出纳人员根据审核后的收付款凭证逐日逐笔顺序登记的。