66. The author of the passage most probably discuss the function of tactile receptors (lins8-13) in order to (A) eliminate an alternative explanation of anteater's response to electrical stimuil Line 8-13 While it is true that tactile receptors, another kind of sensory organ on the anteater's snout, can also response to electrical stimuli, such receptors do so only in response to electrical field strengths about 1,000 times greater than those known to excite electroreceptors. 答案是A 68. The oassage suggests that the research mentioned in the second paragraph who oberved anteaters break into a nest of ants would most likely agree with which of the following statements? (E) The speed with which the anteaters located their prey is greater than what might be expected on the basis of chance alone. 原文:(Line26-32) Still, researchers have observed anteaters breaking into a nest of ants at an oblique angle and quickly locating nesting chambers. This ability to quickly locate unseen prey suggests, according to the researchers, that the anteaters were using their electroreceptors to locate the nesting chambers. 答案E 這兩題我看了詳解 但是不是很懂 麻煩各位高手指導一下 謝謝!! --

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