Which of the following questions does the passage answer? [br] It can be inferre

游客2024-01-05  27

问题 Which of the following questions does the passage answer? [br] It can be inferred from the passage that lichens use less energy and grow more slowly when ______.

选项 A、the environment is polluted
B、they are exposed to ultraviolet rays
C、they are very old
D、the supply of water is inadequate

答案 D

解析
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