2. 外语
  3. It’s hard to confirm or refute that there’s a causal relationship between the amount of fat we eat and the of heart attacks.

It’s hard to confirm or refute that there’s a causal relationship between the amount of fat we eat and the of heart attacks.

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问题 It’s hard to confirm or refute that there’s a causal relationship between the amount of fat we eat and the of heart attacks.
选项 A、incidence
B、impetus
C、momentum
D、emergence
答案A
解析 名词辨析题。A incidence指“出现的范围、程度或频率；发生，出现”，强调的是发生这个事实；B impetus意为“推动力，促进”一般指的是促进事物向前发展的推动力；选项C momentum意为“动力，要素，契机”，往往指的是非物质发展的动力，如思想或事物进程的发展势头； D emergence意指事物发生的动作，“浮现，露出”。
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专业英语四级

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