单项选择题

Chinese of ten shake my hand and don't let go. They talk away contentedly, ______ of my discomfort and struggle to disengage my hand.

A．oblivious
B．patent
C．obvious
D．pernicious
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单项选择题
What we consider a luxury at one time frequently becomes a ______, many families find that ownership of two cars is indispensable.
A．fashion
B．necessity
C．proclivity
D．nuisance
单项选择题
And the topic fat is forbidden. Even the slightest paunch betrays that one is losing the trim and ______ of youth.
A．vague
B．vigor
C．vogue
D．vulgar
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