OG8 阅读 Q50

Choice B is the best answer. As described in the third paragraph, Hodick and Sievers's model emphasizes that the Venus flytrap closes by means of an electrical charge triggered when the plant's hairs are touched. But as explained in the last paragraph, when Alexander Volkov tested this model, the design of his experiment involved the direct application of an electrical charge, which "made the trap close without any direct touch to its trigger hairs." Therefore, Volkov's work could be criticized because his design omitted, rather than corroborated, a central element of Hodick and Sievers's model—namely, the physical stimulation of the hairs.
Choice A is incorrect because although the last paragraph explains that Volkov omitted an element of Hodick and Sievers's model when designing his own experiment, there is no suggestion that he did so out of a faulty understanding of their model. Choice C is incorrect because it is impossible to know from the passage if Hodick and Sievers would have objected to Volkov's methods. Choice D is incorrect because the passage doesn't indicate whether the technology Volkov used had been available to Hodick and Sievers when they formulated their model.