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In the smoke and dust and darkness, people ________ to one another grabbing hands and linking arms, they formed a human chain that made its way down stairwells and corridors and out into the sunlight of an unthinkable day.
A.a great scientist as
B.as great a scientist as
C. as a great scientist as
D.such a great scientist as

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出自：河南城建学院大学英语（三）

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