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【单选题】
The passage suggests that the effects of volcanic carbon dioxide on the environment differ from those of sulfurous gases in thatA.
carbon dioxide tends to alleviate environmental haze, while sulfurous gases usually increase it
B.
carbon dioxide tends to increase temperatures by trapping sunlight, while sulfurous gases tend to decrease temperatures by blocking it
C.
carbon dioxide tends to have an effect on the environment, while sulfurous gases for the most part do not
D.
sulfurous gases have played an even more significant role than carbon dioxide in pushing environmental temperatures outside the habitable range
E.
sulfurous gases tend to decrease the level of solar radiation outside the earth's atmosphere, while carbon dioxide plays only a negligible role
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反馈参考答案：
举一反三
【多选题】填料塔打开人孔作业中，可能发生的操作错误是（）。
A.
没有进行安全技术交底和进行现场监护
B.
打开人孔次序不对，使塔内形成拨风回路
C.
没有用水喷淋和进行温度监视
D.
安排有资质的施工人员进行作业
【简答题】灰分测定中,盛装样品的器皿叫 ,使用的钳叫 。
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