試題詳解

47. The author mentions the results of flotation experiments on plant seeds (lines 6-7) most probably in order to _______.
(A) suggest that the long-distance dispersal of seeds is a process that requires long periods of time
(B) lend credibility to the thesis that air currents provide a method of transport for plant seeds to Hawaii
(C) challenge the claim that ocean currents are responsible for the transport of plant seeds to Hawaii
(D) support the claim that the distribution of plants in Hawaii is the result of the long distance dispersal of seeds