2. 考研
  3. You don’t have to install this radio in your new car; it’s an ______ extra.

You don’t have to install this radio in your new car; it’s an ______ extra.

admin2008-12-26  23
问题 You don’t have to install this radio in your new car; it’s an ______ extra.
选项 A、excessive
B、optional
C、additional
D、arbitrary
答案B
解析 本题为形容词词义辨析题。excessive意为"过多的，过分的"；optional意为"任选的；可选择的"；additional意为"额外的，附加的"；arbitrary意为"武断的，任意的"。根据上下文可知，收音机是可装可不装的，是"可选择的"。
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考研英语一

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