单项选择题

The subject matter was so technical as to be beyond the ______ of the average layman.

A. sphere
B, realm
C. ken
D. kingdom
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单项选择题
A lantern burned inside, making it ______ like the belly of a lightning bug.
A．sparkle
B．gleam
C．flicker
D．glow
单项选择题
Nobody knows why there are so few women at the ______ of movies.
A．helm
B．seat
C．control
D．reign
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