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【单选题】
一类区域的锅炉排放烟尘的最大允许质量浓度不得超过（）。
A.
100mg/m 3
B.
200mg/m 3
C.
400mg/m 3
D.
600mg/m 3
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【单选题】Choose the correct underlined option in each sentence. Visitors mustn't touch / to touch the exhibits.
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【单选题】Please remember the following things when you are in the museum. _________, don't touch the things. Second, don't make much noise…. [     ]
A.
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【多选题】阅读下面材料，回答以下问题： 《中共中央关于制定国民经济和社会发展第十一个五年规划的建议》提出：本世纪头二十年是我国发展的重要战略机遇期，“十一五”时期尤为关键。我们必须紧紧抓住机遇，应对各种挑战，认真解决长期积累的突出矛盾和问题，突破发展的瓶颈制约和体制障碍，开创社会主义经济建设、政治建设的新局面，为今后十年顺利发展打下坚实的基础。我们一定要有高度的历史责任感，强烈的忧患意识和宽广的世界眼光，立...
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【简答题】The girl was too frightened to touch the spider. — The girl was ____ frightened ____ ____ touch the spider.
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【单选题】Juan Ponce de Leon was the first Spaniard to touch the shores of the present United States. Just as Columbus had not remotely realized the extent of his momentous discovery, de Leon never dreamed that...
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B.
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【单选题】Touch the symbol on the upper right of the touch screen to shut down .
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B.
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【简答题】Imagine a magical forest where the trees touch the sky. Due to enough rainfall, the trees grow huge and spread wide. Their tallest branches are so thick-leafed that they create a thick curtain. Even t...
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【简答题】请根据神奇的纸屑,进行行为观察与指导
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相关题目：
【判断题】The fairness cup or the teapot should touch the rim of the teacup.
A.
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查看完整题目与答案
【单选题】Juan Ponce de Leon was the first Spaniard to touch the shores of the present United States. Just as Columbus had not remotely realized the extent of his momentous discovery, de Leon never dreamed that...
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C.
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【单选题】Touch the symbol on the upper right of the touch screen to shut down .
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B.
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C.
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D.
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查看完整题目与答案
【简答题】Imagine a magical forest where the trees touch the sky. Due to enough rainfall, the trees grow huge and spread wide. Their tallest branches are so thick-leafed that they create a thick curtain. Even t...
查看完整题目与答案
【简答题】请根据神奇的纸屑,进行行为观察与指导
查看完整题目与答案