问题
单项选择题 A1型题
我国卫生部发布的《文化娱乐场所卫生标准》(GB9664-1996)规定影剧院场次的间隔时间及空场时间的分钟数应不少于()
A.30,20
B.20,10
C.30,10
D.60,30
E.60,10
答案
参考答案:C
解析:我国卫生部发布的《文化娱乐场所卫生标准》(GB9664-1996)规定影剧院场次的间隔时间应不少于30分钟,其中空场时间不少于10分钟。
我国卫生部发布的《文化娱乐场所卫生标准》(GB9664-1996)规定影剧院场次的间隔时间及空场时间的分钟数应不少于()
A.30,20
B.20,10
C.30,10
D.60,30
E.60,10
参考答案:C
解析:我国卫生部发布的《文化娱乐场所卫生标准》(GB9664-1996)规定影剧院场次的间隔时间应不少于30分钟,其中空场时间不少于10分钟。
阅读下面短文,从短文后各题所给的四个选项(A,B,C,D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。 For centuries, magicians have used various ways to shock the audience. We all have seen how a 36 performer carefully steps 37 a bed of burning coals -- barefoot. Then he walks across 38 a single burn on his feet. Is it mind over matter, or is it just physics? As it turns __39 , walking on burning coals isn’t that hot as 40 . “The coals are hot enough to 41__ you, but if you walk quickly across them you 42 being burned.” says Jonathan Hall, a physician at Penn State University in Eric Pennsylvania. That’s because some coals are made 43 burning wood chips. Wood has two 44__ properties(特性)for fire-walking, explains Hall. First, wood is an insulator(绝缘体)--it doesn’t __45 heat very well. “It 46 _ time for heat to travel 47 the wood to your feet.” Hall says. If the performer walked across red-hot metal 48 , that would truly be 49 , because metal conducts, or transmits, heat very well. The metal would 50 burn a performer’s feet. Second, wood has a low specific heat-- it doesn’t take much heat to 51 its temperature. Heat is a form of 52 . Temperature is a 53 of heat, in units of degrees. So 54 the coals are hot, the value(数值)of heat energy they contain is low. Thus, a well-trained performer can 55 such an amazing result. Still, you don’t want to walk on burning coals, do you?
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