下列哪一项症状不属于湿温邪遏卫气证表现()
A.寒甚热微,身痛有汗
B.身热不扬,午后较显
C.胸脘痞闷
D.头重如裹
E.苔白腻,脉缓
参考答案:A
汽油机工作时,曲轴每转2周,各缸均点火()。
A.4次
B.3次
C.5次
D.1次
Fire alarm system thermostats are actuated by().
A.smoke sensors
B.the difference in thermal expansion of two dissimilar metals
C.pressure loss due to air being heated
D.an electric eye which actuates when smoke interferes with the beam