单选题
英语六级
2017-06-09
A．Tropical insects.
B．Decayed leaves.
C．Tree resin.
D．Bird feathers.
参考答案
C
答案解析
What is amber derived from?
细节题。题目问琥珀是如何形成的，根据Amber is really fossilized tree resin．可知，琥珀其实是树脂化石。因此，正确答案为C。
细节题。题目问琥珀是如何形成的，根据Amber is really fossilized tree resin．可知，琥珀其实是树脂化石。因此，正确答案为C。
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