单项选择题

In a revolutionary development in technology, several manufacturers now make biodegradable forms of plastic; some plastic six-pack rings, for example, gradually ______ when exposed to sunlight.

(A) harden
(B) stagnate
(C) inflate
(D) propagate
(E) decompose
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单项选择题
The authority of voice in Frazer’s writing strikes many readers today as ______ colonialism; his prose seems as invulnerable and expansive as something on which the sun was presumed never to set.
(A) consonant with
(B) independent of
(C) ambivalent toward
(D) cognizant of
(E) detrimental to
单项选择题
Ms. Sutcliffe’s helpful notes on her latest wine discoveries and her no-nonsense warnings to consumers about ______ wines provide ______ guide tO the numbing array of wines of Burgundy.
(A) excellent...a useful
(B) overrated...an inadequate
(C) overpriced...a trusty
(D) unsatisfactory...a spotty
(E) vintage...an unreliable
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