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愈发 jj65中提到的GWD原题：GWD-18-Q39:
The survival of a rare New Zealand species of mistletoe that produces spectacular sprays of scarlet flowers is threatened both because their leaves are extremely tasty to a voracious opossum species and also because their flowers are pollinated by two species of birds whose populations are in decline.
A. is threatened both because their leaves are extremely tasty to a voracious opossum species and also because their
B. is threatened both because its leaves are extremely tasty to a voracious opossum species and because its
C. is threatened both because its leaves are extremely tasty to a voracious opossum species and also its
D. are threatened both because its leaves are extremely tasty to a voracious opossum species and its
E. are threatened both because their leaves are extremely tasty to a voracious opossum species and because their
答案：B
请NN分析。 |
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发表于 2011-5-24 09:26:38
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