单项选择题

A drug that is ______ reaches the brain faster than if it is smoked or sniffed.

A．ejected
B．poked
C．stung
D．injected
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单项选择题
Labor needs to match its ______ to spending with innovative ideas about service delivery, financing and management.
A．obligation
B．determination
C．resolution
D．commitment
单项选择题
It is essential that any ideas and development work concerning a possible future ______ application be kept absolutely secret and confidential.
A．authority
B．privilege
C．patent
D．title
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