单项选择题

VACCINATION : INOCULATION::

A． office : promotion
B． ban : business
C． quarantine : isolation
D． hindrance : encouragement
E． negotiation: satisfaction
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单项选择题
Mild electric current had been thought to______overactive brain regions that cause disease, but in some cases, it may boost nerves' activity and change their firing patterns.
A． elucidate
B． damage
C． alter
D． stifle
E． confuse
单项选择题
Where Linda has her______charm, and Robert has sense of verve and suavity, Polly has only her superficial______.
A． genteel… uncertainty
B． infectious … pulchritude
C． idolatrous… pluck
D． obsequious … vivacity
E． insufferable … vapidity
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