题目内容

According to paragraph 5, why would life on Titan be improbable?

A. It does not have an ocean.
B. It is not a planet.
C. It is too cold.
D. It has a low atmosphere.

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What does the author mean by the last sentence of the text?

A. Wireless recharging is too wonderful to be true.
B. Wireless recharging is consistent with the laws of nature.
C. Wireless recharging will definitely come true finally.
D. Wireless recharging will surely enter the mainstream in the end.

In the talk, the professor provides several examples of deserts from around the world. Indicate which geographical or climatic feature formed these deserts. One of the answer choices will NOT be used. Click in the correct box for each phrase.

In which of the following chapters would this passage most probably appear?

A. Environment and Organisms
B. Pollution and Policies
C. Human Influences on Ecosystems
D. Energy Resources

Which of the following is mentioned as an example of a commensal relationship?

A. Orchids
B. Mistletoe
C. Ants
D. Fungus

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