Tiger beetles are such fast runners that they can capture virtually any nonflying insect. However, when running toward an insect, the beetles intermittently stop, and then, a moment later, resume their attack. Perhaps they cannot maintain their pace and must pause for a moment's rest; but an alternative hypothesis is that while running tiger beetles are unable to process the resulting rapidly changing visual information, and so quickly go blind and stop.
Which of the following, if discovered in experiments using artificially moved prey insects, would support one of the two hypotheses and undermine the other?
(A) When a prey insect is moved directly toward a beetle that has been chasing it, the beetle immediately turns and runs away without its usual intermittent stopping.
(B) In pursuing a moving insect, the beetles usually respond immediately to changes in the insect's direction, and pause equally frequently whether the chase is up or down an incline.
(C) The beetles maintain a fixed time interval between pauses, although when an insect that had been stationary begins to flee, the beetle increases its speed after its next pause.
(D) If, when a beetle pauses, it has not gained on the insect it is pursuing, the beetle generally ends its pursuit.
(E) When an obstacle is suddenly introduced just in front of running beetles, the beetles sometimes stop immediately, but they never respond by running around the barrier.
答案是C：我不是很明白啊如果这个TB每个一段时间pause一下然后再蹦哒的话，不早就被那可怜的，从stationary到flee的insect发现了嘛？这个选项到底是支持了那个解释方法呢？我觉得从C好像两个都可以解释地通啊。用"精疲力竭"法解释的话：他追不动了，于是休息一下，每休息一下力气就多一些然后就追上了。用"间歇性失明"法解释的话，每次有看见东西了然后就又去追了
为什么D不对呢？如果发现它pause的时候没有追上insect他就不追了，这不就说明了是"精疲力竭"法嘛？
另外哪位NN能告诉我B这句话啥意思啊，尤其是那个"whether the chase is up or down an incline"，瞪着看了3分钟没有明白这个选项描述什么样的动作场景 | 
