单项选择题

A．Saws, choppers, axes, tongs, hooks.
B．Axes, saws, choppers, tongs, hooks.
C．Choppers, axes, saws, hooks, tongs.
D．Axes, saws, choppers, hooks, tongs.
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单项选择题
According to the passage, an unlabeled use of a drug is any use that ______.
A．has been reviewed by the FDA and specifically rejected
B．is medically beneficial despite the fact that such use is prohibited by law
C．is made in experiments designed to determine whether a drug is medically beneficial
D．has medical value but has not yet been approved by FDA for inclusion as a labeled use
单项选择题
The space agencies are reluctant to open up space to tourists.
A．Y
B．N
C．NG
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