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【多选题】
资源型城市的历史贡献包括A.
为国家经济建设提供能源及原材料支撑
B.
作为资源产业基地为国民经济发展做出重要贡献
C.
为社会提供大量就业机会
D.
促进城镇化，辐射作用带动了区域经济发展
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】The author believes that ______.
A.
the results obtained in the laboratory exactly reflects the real-life situations
B.
the gap between the laboratory studies and real-life situations is too large to fill up
C.
the gap between the laboratory studies and real-life situations can be closed by proper reasoning
D.
the difference between the laboratory studies and real-life situations will be reduced
【简答题】A special laboratory at the University of Chicago is busy only at night. It is a dream laboratory where researchers are at work studying dreamers. Their findings have discovered that everyone dreams f...
【多选题】有压管道的总水头线与测压管水头线的基本规律是( )。
A.
总水头线是沿程下降的
B.
测压管水头线是沿程下降的
C.
总水头线和测压管水头线沿程可升可降
D.
测压管水头线沿程有可升可降
【单选题】The author believes that ______.
A.
the results obtained in the laboratory exactly reflects the real-life situations
B.
the gap between the laboratory studies and real-life situations is too large to fill up
C.
the gap between the laboratory studies and real-life situations eau be closed by proper reasoning
D.
the difference between the laboratory studies and real-life situations will be reduced
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