题目内容
Nokia has a family of low-cost mobile phones based on Google's Android operating system.
| A.performed | B.operated | C.launched | D.instructed |
C
试题分析:句意:Nokia根据谷歌的Android 操作系统发动实施了一系列的低成本移动电话。A. performed 表现;B. operated运作;C. launched发射、实施;D. instructed指导。故选C。考点: 考查动词的用法。
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