GWD -2 - Q4: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
给的答案是C, 网上讨论的答案是E, 哪位NN能够帮我讲讲这题目,谢谢了。 |