2. 外语
  3. AAlthough pearls may be formed by any shelled mollusk, the most valuable pearls are obtained Bfrom the oysters. Except for Cimit

AAlthough pearls may be formed by any shelled mollusk, the most valuable pearls are obtained Bfrom the oysters. Except for Cimit

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问题 AAlthough pearls may be formed by any shelled mollusk, the most valuable pearls are obtained Bfrom the oysters. Except for Cimitation pearls, which are entirely man-made, all pearls are formed from a secretion around an irritating body that enters the soft tissue of a mollusk. DIf the irritating body enters the mollusk by accident, a natural pearl forms.
选项 A、 
B、 
C、 
D、 
答案B
解析 B项oysters为名词复数，表泛指，前面不应加定冠词the，因此应将from the oysters改为from oysters。
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