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【判断题】
应用浮锥法确实得到了总价值为最大的最终开采境界，但该方法是“准优化”算法，在某些情况下不能求出总价值为最大的境界。()A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】__________ he took part in the competition, he won a second prize.
A.
The first time
B.
For the first time
C.
At a time
D.
At one time
【简答题】听力原文：What do you do in the first part of the conversation? What do you do in the first part of the conversation? We ______ and tell each other our names.
【单选题】John always feels sluggish first thing in the morning. The underlined part means ______.(2014-70)
A.
sick
B.
inactive
C.
dizzy
D.
drowsy
【单选题】If you take part in the first competitive part of the tour, you will ride for ______.
A.
35 kilometers
B.
55 kilometers
C.
75 kilometers
D.
110 kilometers
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