氨具有较高的体膨胀系数,满量充装的液氨气瓶,在0~60℃,其压力升高1.32~1.80Mpa,因此液氨气瓶超装极容易发生爆炸。
正确
暂无解析
为什么说母乳是婴儿最理想的食品?
OneoftheresponsibilitiesoftheCoastGuardistomakesurethatallships______followtrafficrulesinbusyharbors.
Themeeting_____nextweekwillbeofgreatimportance.
不符合腹泻患儿护理诊断的是()
Thosefamiliarwitheveningdresswillalways______blackwithelegance.