单项选择题

Human development is based not only on inborn biological states, but also on patterns of to social knowledge.

A．access
B．contact
C．acquaintance
D．path
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单项选择题
Environmental groups _________ a campaign against the widespread production of genetically modified crops.
A．underwent
B．established
C．regulated
D．launched
单项选择题
An international effort is required to. cope with the _________ needs of the earthquake victims.
A．tough
B．tense
C．insistent
D．urgent
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