2. 外语
  3. There are two main requirements before the fifth-generation computer can become a reality and it is these that scientists are __

There are two main requirements before the fifth-generation computer can become a reality and it is these that scientists are __

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问题 There are two main requirements before the fifth-generation computer can become a reality and it is these that scientists are _________.
选项 A、anticipating
B、tackling
C、manipulating
D、speculating
答案B
解析 考点  单词辨析题。此题主要考查考生对几个考纲动词的掌握情况，要求考生能熟知词意，并能做出正确的判断和选择。anticipate“预期，期望，预订，预见，可以预料”；tackle“解决，处理(问题)”； manipulate“(熟练地)操作，使用(机器等)，操纵(人或市价、市场)，利用，应付，假造”；speculate”推测，思索，做投机买卖”。依题意此处应是“处理”和“解决问题”之意，排除A)、C)、D)项，则只有B)项最合适。
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