单选题：Linda was__________ the experiment a month ago, but she chan

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Linda was__________ the experiment a month ago, but she changed her mind at the last minute. A．to start
B．to have started
C．to be starting
D．to have been starting

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答案解析：

4598（　　）

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4，3，﹣7，40，1551，（　）。

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根据下列文字，回答题。Until I took Dr Offutt's class in DeMatha High Sc

根据下列文字，回答题。Until I took Dr Offutt's class in DeMatha High School, I was an under

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远离基因治疗，从失败中吸取教训，更加深入地认识风险，__帮助医生

__________远离基因治疗，__________从失败中吸取教训，更加深入地认识风险，__________帮助医生们在未来更好地预测和防止类似事件的发生。

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The computer would develop friendships with humans in a(n) _

The computer would develop friendships with humans in a(n) __________ way.A．quic

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