单项选择题


A．collected
B．conducted
C．discovered
D．published
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单项选择题
A．whoB．whatC．whichD．that
A．who
B．what
C．which
D．that
单项选择题
Three high school students started a website in order to ______.
A．attract greater public attention to their needs
B．appeal to the public for contributions and donations
C．expose officials who neglected their duties
D．keep people properly informed of the crisis
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