单项选择题

Petrol is manufactured from the ______ oil we take out of the ground.

A．crude
B．raw
C．rough
D．tough
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单项选择题
Though it was less attractive, Ralph knew the metal box would be more ______ than the wooden box.
A．terminal
B．durable
C．persistent
D．ultimate
单项选择题
His health falling, ______ in 1782.
A．so Herry Lee went on leave from the army
B．the army gave Herry Lee leave
C．when the army gave Herry Lee leave
D．Herry Lee went on leave from army
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