问题
多项选择题
按生产的火灾危险性分类，乙类火灾危险性的生产是指（）。
A、闪点≥28℃到﹤60℃的液体
B、爆炸下限≥10%的气体
C、助燃气体
D、不属于甲类的氧化剂
答案
参考答案：A, B, C, D
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按生产的火灾危险性分类，乙类火灾危险性的生产是指（）。
A、闪点≥28℃到﹤60℃的液体
B、爆炸下限≥10%的气体
C、助燃气体
D、不属于甲类的氧化剂
参考答案：A, B, C, D
A) 根据所读内容，在文章后第62—71小题的空格里填入恰当的单词。每个空格只填1个单词。 Venice, a city in the northeast of Italy, is famous throughout the world for its buildings and romantic canals (运河). But in February every year, people come to Venice for another reason. The city carnival fills the place with excitement and fun. This year, the celebration runs from February 4 to 21. Colorful costumes have always played a very important role in the Venetian carnival. The carnival happens at the start of the Christian fasting (斋戒) period of Lent. It was traditionally a time to go a bit crazy with eating, drinking, dancing and dressing up before the fast began. People used masks to hide their social identity so that the nobility(贵族) would look no different from the commoners. Today the carnival is largely for the tourists. “Venetians don’t dress up for Carnival after the age of 10.” Giuseppina Giudice, who has lived in the city all her life, told the Guardian. “All we see of Carnival is a river of strangers who flow into town to feel ‘Venetian’. They fill it, buy a cheap mask and leave with nothing but photographs of St Mark’s Square.” Some locals want to bring back the original (最初的) feel of Carnival. In 2009, two social networking groups started organizing their own carnival. Visitors were invited. But there were no expensive tickets or fancy ball dresses---- just an old-fashioned Italian street party. “Tourists are welcome to our party ---- the more we can show them about the real Venice rather than the postcard Venice, the better,” Matteo Secchi, one of the organizers, told the Guardian.
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