单项选择题

Which of the following sentences about pure science is true

A．It may lead to antiscientific, impure results.
B．It necessarily precedes applied science.
C．It is not always as pure as we suppose.
D．It necessarily results from applied science.

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单项选择题

A scientist interested in general knowledge about oxygen would probably call his approach ______.

A．applied science
B．chemical science
C．pure science
D．environmental science

单项选择题

The suggestion of most specialists to deal with young offenders is ______.

A．providing chances for vocational training and reemployment
B．sending them to private schools to receive remedial education
C．making use of small, decentralized, community-based correctional programmes
D．allowing them to live near their original communities