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题库 / Prep2007E1-SC-139
On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.
On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow
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Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow
=the rate at which trees grow is believed among the surest indications of sunspot cycles on Earth
树木生长的速度被认为是地球上太阳黑子周期最可靠的迹象之一
the rate is believed among ……，among介宾作状语，修饰believed，
E状语在句首，谓语动词全部置于主语之前，构成全部倒装；也有谓语动词的部分或助动词置于主语之前，构成部分倒装的用法，如：Never have I seen such a performance.
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