Why did the EU seldom finance basic scientific research in the past? The phrase "stepped up a notch"(line 1, paragraph 5) most

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问题 Why did the EU seldom finance basic scientific research in the past?
The phrase "stepped up a notch"(line 1, paragraph 5) most probably means

选项 A、improved.
B、decreased.
C、worsened.
D、stamped.

答案A

解析 含义题。文章第五段后面说"欧洲的诺贝尔奖获得者比美国少很多,而有了来自中国和印度的竞争后,欧洲的比例还可能进一步下降"。而第一句说"欧洲的研究质量需要____"。由此可见是需要"提高、改善"的。只有答案选项正确。
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