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【单选题】
16 下列物质在核仁中合成的有()A.
蛋白质
B.
氨基酸
C.
DNA
D.
rRNA
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【简答题】阅读理解。 We know the famous ones-the Thomas Edisons and the Alexander Graham Bells-but what about the less famous inventors? What about the people who invented the traffic light and the windshield wiper ...
【单选题】设集合A={3,4,5,6},集合B={3,4,5},集合C={2,3,6},则(A∪B)∩ C=
A.
{1，2}
B.
{3，6}
C.
{1，2，3}
D.
{2，3，6}
【简答题】阅读理解 We know the famous ones-the Thomas Edisons and the Alexander Graham Bells-but what about the less famous inventors? What about the people who invented the traffic light and the windshield wiper (...
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