单项选择题

A．A local anesthetic.
B．A laughing gas.
C．A pain killer.
D．No drug is needed in the case.
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单项选择题
A．They help to cure anxiety.B．They help gain insight into the cause of anxiety.C．They help to control anxiety.D．They help patients to work efficiently.
A．They help to cure anxiety.
B．They help gain insight into the cause of anxiety.
C．They help to control anxiety.
D．They help patients to work efficiently.
单项选择题
A．Keep looking for his wallet.B．Report the theft of the wallet right away.C．Put his wallet in the jacket pocket.D．Be more careful with his wallet.
A．Keep looking for his wallet.
B．Report the theft of the wallet right away.
C．Put his wallet in the jacket pocket.
D．Be more careful with his wallet.
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