单项选择题

How will information get from the observatory to the mainland

A．Geologists will bring it back.
B．It will be sent back by cable.
C．It will be sent by mail.
D．It will be sent back through seismometers(地震仪)
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单项选择题
What is the main purpose of the television
A．To present information about several Hawaiian volcanoes.
B．To explain a research project about an underwater volcano.
C．To demonstrate the latest use of underwater cables.
D．To discuss a study of ocean life near underwater Volcamoes.
单项选择题
A．ThereforeB．AndC．YetD．Otherwise
A．Therefore
B．And
C．Yet
D．Otherwise
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