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【单选题】
One sixth of all wild plants are used for medicine in developing countries.
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】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
【单选题】Some scientists worry that the loss of plants and animals all around the world is inevitable because of global warming and human activity.
A.
faster
B.
unavoidable
【单选题】Natural disasters, as well as the effects of erosion over time, can lead to the loss of a plant’s natural habitat.
A.
human activities
B.
destruction and wearing away
【单选题】The Global Seed Vault will play a crucial role in protecting the world’s food crops from weather disasters and climate change.
A.
small
B.
very important
【单选题】Plants have even more vulnerability to climate change and natural disasters than animals do because plants cannot move to other areas.
A.
ability to protect oneself
B.
openness to attack or damage
【单选题】Food crops are always in danger from devastating diseases and natural disasters.
A.
extremely destructive and damaging
B.
minor and easy to stop