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发布时间：2006-06-22 13:26     点击：

    (A) The level of technology achieved by our ancestors who designed and built the monuments in question was actually much higher than it was formerly believed to be.

    (B) Monuments such as the pyramids of Egypt are very often positioned so that their prominent design features point to heavenly bodies.

    (C) Stories about beings from heaven appear in the mythologies of cultures that could have had no interchange with one another.

    (D) Modern builders cannot conceive of a way to duplicate the monuments without resorting to the most recent technological innovations.

    (E) Any extraterrestrial civilization advanced enough to have interplanetary space travel during the time of our ancestors could easily find means of communicating with them.

    24. To produce a pound of protein, herbivorous sea creatures such as abalones require relatively little plant food, whereas carnivores such as tuna feed on herbivores and thus require the conversion of thousands of pounds of plant food. Hence it would be better for ecological balance if people ate abalone instead of tuna.

    Which of the following, if true, is the best criticism of the argument above?

    (A) Abalone costs much more per pound than tuna does.

    (B) Tuna is much easier to harvest than abalone is.

    (C) Abalones mature so slowly that meeting market demands would exhaust the stock .

    (D) Human beings would require the same amount of protein from either abalone or tuna.

    (E) The average specimen of abalone is much smaller than the average specimen of tuna.

    The author of the passage above makes which of the following assumptions?

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