单项选择题

Weather exports use the ______ of the barometer as one of their guides in predicting the weather.

A．isobars
B．fluctuations
C．gradations
D．mercury
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单项选择题
In the British theater young people under thirty-five have not had much ______ getting recognition onstage, but offstage--in the ranks of playwrights, directors, designers, administrators--they have mostly been relegated to relative obscurity.
A．trouble
B．satisfaction
C．curiosity about
D．fear of
单项选择题
We have in America a ______ speech that is neither American, Oxford English, nor English but a combination of the three.
A．hybrid
B．nasal
C．mangled
D．feigned
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