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【单选题】
计算物质的含量用公式 计算，公式中 V T 的单位表达正确的是：A.
升（L）
B.
毫升（ml）
C.
摩尔（mol）
D.
毫摩尔（mmol）
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举一反三
【单选题】The new trend in artificial intelligence research stems from______.
A.
the shift of the focus of study on to the recognition of the shapes of objects
B.
the belief that human intelligence cannot be duplicated with logical, step-by-step programs
C.
the aspirations of scientists to duplicate the intelligence of a ten-month-old child
D.
the efforts made by scientist in the study of the similarities between transistors and brain cells
【单选题】Which of the following made the Americans neglect the current immigration flood?
A.
The focus on the social and cultural costs and benefits of immigration.
B.
The distinction they made between immigrants.
C.
The lack of recognition of the immigrants' economic influence.
D.
The lack of recognition of the immigrants' differences.
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