Some sea creatures developed backbones．,The first giant-找考题网

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A．Some sea creatures developed backbones.
B．The first giant squid was captured.
C．Some sea creatures shed their shells.
D．Sea life became more intelligent.

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单项选择题

No one lives in the region of the lakes.

A．Y
B．N
C．NG

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All of the following are mentioned in the passage as reasons for allowing unlabeled uses of drugs except ______.

A．tile increased cost to the patient of buying an FDA approved drug
B．the availability of publications to inform physicians of the existence of such uses
C．the time lag between initial discovery of a medical use and FDA approval of that use
D．the possibility that a medically beneficial use may never be clinically documented

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