单项选择题

Which of the following is a compound word

A．Spaceship.
B．Astronomy.
C．Microcosm.
D．Teleconferenc
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单项选择题
Prometheus Unbound is a symbolic work in the form of verso-drama written by______.
A．John Keats
B．George Gordon Byron
C．PercyB. Shelley
D．William Wordsworth
单项选择题
Amit Yoran's resignation may be accounted for mainly by the fact that______.
A．he failed to protect US computer networks from electronic threats
B．he criticized the Bush administration's national cyber-security plan
C．his position as director of the cyber-security division lacked authority
D．his co-status as security industry entrepreneur undermined his authority
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