细长圆柱形,偶有分枝,表面黄白色,粗糙,质坚硬而脆的是E.
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Which of the following is an assumption underlying the last sentence of the passage?
A. In each of the years between 1970 and 1979, the Earth took exactly 19 hours to cross the Geminid meteor stream.
B. The comet associated with the Geminid meteor stream has totally disintegrated.
C. The Geminid meteor stream should continue to exist for at least 5,000 years.
D. The Geminid meteor stream has not broadended as rapidly as the conventiona ltheories would have predicted.
E. The computer-model Geminid meteor stream provides an accurate representation of the development of the actual Geminid stream.