2. 外语
  3. The lithium batteries are becoming improper for the cell phone because ______. The best title for the passage is ______.

The lithium batteries are becoming improper for the cell phone because ______. The best title for the passage is ______.

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问题 The lithium batteries are becoming improper for the cell phone because ______.
The best title for the passage is ______.
选项 A、Search for better phone power.
B、Development of cell phone battery.
C、Competition between two electronic firms.
D、Advantage and disadvantage of methanol fuel.
答案A
解析 本题问“文章最好的题目是哪项?”文章的开头就提到“But the more functions cell phone manufacturers add， the greater the amount of power the phones use and the less practical running them on lithium batteries becomes— so the race to find a viable alternative is on.”也就是说，手机功能越多，它所需要的能量也就越多，所以当今的锂电电池就不能满足需要，需要发明一种替代物。后文的内容均与此话题相关。所以[A]“寻找更好的手机能源”正确。[B]“手机电池的发展”。文中未提到手机电池的发展历史和过程。[C]“两家电器公司的竞争”。两家公司竞争的原因也是想尽早发明这种新型电池。[D]“甲醇燃料的优缺点”。相关内容文中虽有提及，但不是文章的中心内容。
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大学英语四级

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