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【简答题】
素数概念:除了 1 和它本身以外不再有其他的因数,最小的素数为 2 。
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【简答题】蛋白质的基本构件分子是20种常见的______，除______是α-亚氨基酸外，其余均为______。
【判断题】The production of goods to produce other goods may also be considered as investing.
A.
正确
B.
错误
【判断题】According to the comparative cost theory, countries should specialize in the production of goods and services that can produce most efficiently. A country is said to have a comparative advantage in th...
A.
正确
B.
错误
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【判断题】The production of goods to produce other goods may also be considered as investing.
A.
正确
B.
错误