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参考答案：D
解析：
[分析]： 用洛必达法则，可得 [*] 故应选(D)． [*]
奥运会的标志由（）个不同颜色的圆环组成，象征各大洲的团结。
A.5
B.6
C.4
Einstein liked Bose's paper so much that he his own work and translated it into German.[ ]
A. gave off
B. turned down
C. took over
D. set aside
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