单项选择题

Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.
What protects the sea dragon from a meat eater’s attack

A．Its enormous size.
B．Its plant-like appearance.
C．Its instantaneous response.
D．Its offensive smell.

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单项选择题

单项选择题

Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. What protects the sea dragon from a meat eater’s attack 您的浏览器不支持 audio 元素。