单项选择题

As a ______ major, he enjoyed working in the steel plant.

A．metallurgy
B．geology
C．astronomy
D．seismology
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单项选择题
He is such a ______ that he built a porch for his house last summer during his vacation.
A．productive
B．versatile
C．authoritative
D．solitary
单项选择题
An area of rich forests was ______ to life.
A．advantageous
B．decorative
C．attracted
D．privileged
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