The ponderous pine, a towering resident of dry regions of the United States,______ survive
A.tenderly
B.tenuously
C.tentatively
D.tenaciously
A.tenderly
B.tenuously
C.tentatively
D.tenaciously
A.advanced
B.heavy
C.complex
D.rapid
A.ponderous
B.postpone
C.opponent
D.component
In recent years there has been a ()increase in the cost of living; many familiar have to depend on the federal aids.
A、significant
B、violent
C、powerful
D、ponderous
The milder winters of recent years make the pine beetle population ______.
A.decrease
B.increase
C.keep in check
D.change
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