2. 外语
  3. The passage mainly tells us ________. Which of the following is not true according to the passage.?

The passage mainly tells us ________. Which of the following is not true according to the passage.?

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问题 The passage mainly tells us ________.
Which of the following is not true according to the passage.?
选项 A、Samuel F.B.Morse invented not only the electric telegraph but also telegraph code.
B、The Morse code can be used for communication by telegraph cable or radio.
C、The Morse code is the only telegraphic code in world.
D、When the ships are on the sea, radio operators often use the Morse code.
答案C
解析 文章第四段说明了摹斯电码不是世界上惟一的电报代码。故本题答案为C。
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