单项选择题
烟花爆竹火灾爆炸的安全措施中,不属于烟花爆竹生产过程措施的有( )。
A.领药时,要少量、多次、勤运走
B.工作台等受冲击的部位设接地导电橡胶板
C.黑火药粉碎,应将硫黄和木炭两种原料分开粉碎
D.干燥烟花爆竹时,应采用日光、热风散热器、蒸汽干燥,可用红外线烘烤
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听力原文:W: Mike, how did you enjoy your trip? What did you think of les Angeles?M: it was all right. I liked it better than I thought I woulD.The problem is transportation. The bus service is terrible, and they don't have a subway.Q: What does the man think of Los Angeles?(16)A.It is the best city he's ever visiteD.B.It was worse than he had expecteD.C.It is difficult to get around in the city.D.The hotel service is terrible in the city.
A.Q:
B.It
C.
B.It
D.
C.It
E.
D.The
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单项选择题
烟火药组分除了氧化剂和可燃剂之外,还有( )。
A.还原剂和黏结剂
B.黏结剂和阻化剂
C.安定剂和还原剂
D.黏结剂和安定剂
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