单项选择题

Hardly a month goes by without______ of another survey revealing new depths of scientific illiteracy among US citizens.

A．words
B．word
C．a word
D．the word
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单项选择题
A．rightB．demandC．requestD．claim
A．right
B．demand
C．request
D．claim
单项选择题
Many people nowadays save money to ______for their old age.
A．cater
B．supply
C．provide
D．equip
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