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【简答题】
A．They were willing to spend more money on clothes. B．They paid more attention to their appearance. C．They were more aware of changes in fashion. D．They were nicer and gentler.
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【简答题】状态行响应文本为:“ HTTP/1.1 200 OK ”,状态码 200 表示 , 如果状态码为 404 ,则表示 。
【简答题】A couple of years ago, I went to Australia for a meeting with my friend, Chris. We decided to drive across country to Brisbane after the meeting ended. The drive was going to take four days and most o...
【单选题】The author uses the example of Chris Niedenthal in the first paragraph to illustrate that
A.
Chris Niedenthal is a person with a terrific appetite.
B.
the author is against Chris Niedenthal's diet.
C.
unreasonable diet may contribute to one's overweight.
D.
Chris Niedenthal has a high cholesterol level in his body.
【单选题】流行病学实验的基本特征不包括（）
A.
是前瞻性研究
B.
不能确证因素与疾病之间的因果关系
C.
必须施加一种或多种干预措施
D.
分组必须采取严格的随机分配原则
E.
必须有平行的实验组和对照组
【单选题】流行病学实验的基本特征不包括（）。
A.
是前瞻性研究
B.
不能确诊因素与疾病之间的因果关系
C.
必须施加一种或多种干预措施
D.
分组必须采取严格的随机分配原则
E.
必须有平行的实验组和对照组
【单选题】流行病学实验的基本特征不包括( )
A.
它是前瞻性研究
B.
不能确证因素与疾病之间的因果关系
C.
必须施加一种或多种干预措施
D.
分组必须采取严格的随机分配原则
E.
必须有平行的实验组和对照组
【单选题】听力原文：Chris: I' ve heard that you used to work for the BBC, is that true? Erwin: Yes, that’s true. I worked as a news journalist for the World Service, specializing in Africa. Chris: Then how could you...
A.
Because he likes diving.
B.
Because he wanted to find a job as a dive master there.
C.
Because he worked for the World Service.
D.
Because he was assigned to Madagascar.
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