[单选题] 提问人:匿名网友 提问时间:2021-08-22

Why does the author mention a steamship?


A .To illustrate that man can make use of sources of energy from the sea.
B .To show that a steamship is better than other kinds of ships.
C .To argue that man should use steamships.
D .To indicate that it is warmer in the ocean than on land.

提问人:匿名网友 提问时间:2021-08-22

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