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【简答题】
提高劳动生产率可以增加单位时间里的使用价值和价值量。
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皮皮学刷刷变学霸
举一反三
【单选题】Why does the author mention 'aragonite' in line 26
A.
To explain why fossils are rare
B.
To compare aragonite fossils and calcite fossils
C.
To argue that certain fossils are more informative than others
D.
To illustrate the kinds of inorganic hard parts that can form. fossils
【简答题】学习JS的小案例 比照代码截图,编写相应JS代码。
【单选题】The reason why some people don't socialize with their co-workers on the job is that ______.
A.
they consider work and play separate activities
B.
they have nothing in common with their fellow workers
C.
they feel that socializing with them well create problems at home
D.
they feel that socializing with them may result in emotional problems
【单选题】According to the passage, who are the first immigrants in America?
A.
The African slaves.
B.
The Asian descendents.
C.
The Englishmen.
D.
The native Americans.
【简答题】在下列关于趋势线的陈述中，正确的陈述有（ ）。
【单选题】The first immigrants in American history came from
A.
England and the Netherlands.
B.
Ireland.
C.
West Germany.
D.
East Europe.
【简答题】数字万用表可以测量流过电阻 的 、电阻两端的 及电阻值。
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