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【单选题】
The rate of extinction is similar to what it was in the age of the dinosaurs.
A.
True
B.
False
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】A medicine made from the rosy periwinkle has improved survival rates for children with malaria.
A.
True
B.
False
【单选题】The seeds of each plant carry all of the genetic information necessary to transfer characteristics from a parent plant to a new plant.
A.
related to nutrition or ingredients
B.
related to development or origin
【单选题】There are so few members of some plant species left that they are in danger of becoming extinct.
A.
gone forever
B.
overgrown
【单选题】The Global Seed Vault in Norway is trying to consolidate many smaller collections of rare plant seeds and shoots from all over the world.
A.
bring together in a single place
B.
sell for a large amount of money