火灾发生后,在烟气所流经的巷道内,气温升高,空气成分发生变化,形成了一种附加的自然风压,通常把这种自然风压叫作()
参考答案:火风压
Mr. Zhang teaches us ,and we all think his classes are interesting and easy.
A. good B. well C. sure
一般眼病患者的主觉症状中,不属于感觉异常的是()
A.疼痛
B.畏光
C.视物变形
D.异物感
E.痒