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【单选题】
今天，许多最好的科学研究工作都揭示：许多早些时候被认为是正确的科研工作的结果，实际上都是错误的。然而，尽管科学家们首要关心的事情是发现真理，但是对今天的科学家来说，研究早期科研工作的第一手报道仍是非常有价值的。 下面哪一项，如果正确，能最好地使上面的两个陈述相一致?A.
很多人不知道许多早些时候的第一手科研工作报道是错误的。
B.
通过参考早些时候的科研工作是怎样进行的可以学得科学方法中的教训，特别是在已经知道那个工作结果不正确的情况下。
C.
科学家们可以对他们那个时候的科学研究做出有益的贡献，即使他们的工作结果后来被证明是错误的。
D.
今天，有许多科学家对早些时候的科学研究并不完全了解。
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【单选题】Although it is painful to watch him struggling with the difficulty, it is probably better to ________________ unless he asks for help.
A.
stay at home
B.
stay still
C.
stay up
D.
stay on the sidelines
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【简答题】Do you still remember your favorite poem during high school or some other important periods in your life? Why is it that decades later it still stands out in your mind? Probably the main reason is tha...
【多选题】关于未结合胆红素的叙述,正确的是
A.
又称为间接胆红素
B.
属脂溶性物质，易通过细胞膜对脑产生毒性作用
C.
镇痛药及抗炎药等可降低其对脑的毒性作用
D.
不易经肾随尿排出
E.
溶血性黄疸时以其增高为主
【简答题】A. discover B. hundreds of C. but D. best E. used F. give G. that Olive oil ( 橄榄油 ) is probably the most widely-used oil for cooking. It is made from fresh olives. And some olive trees which are...
【判断题】..........1. Etienne Bertrand is from Switzerland. ...........2. The Bakers are expecting Etienne Bertrand. ...........3. There have probably been hijacks in recent days. ...........4. But the plane w...
A.
正确
B.
错误
【单选题】Although it is painful to watch him struggling with the difficulty, it is probably better to _______ unless he asks for help.
A.
stay on the sidelines
B.
stand still
C.
stay back
D.
stand in the way
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