Despite technical progress, some food production is still co

Despite technical progress, some food production is still completely __________

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Some parents are only concerned __________ their children's

Some parents are only concerned __________ their children's grades in studies.

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What does "You cannot give him too much money" mean?

What does "You cannot give him too much money" mean?

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14, 7, 5, 5, 2, 4, 1, (  )。

14, 7, 5, 5, 2, 4, 1, (  )。

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高级语言程序是计算机能直接执行的程序。( )

高级语言程序是计算机能直接执行的程序。( )

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