单选题What does the last sentence of the passage mean?

单选题How did the black people feel about the pop music in the 1960s?

单选题It is difficult to send people to other planets because of

单选题What is the author's attitude to the so-called "factual"?

单选题Which of the following can not be listed as consumer-product?

单选题From the context, we know that "attributes" (in Para: 1) means ______.

单选题Research on animal intelligence always makes me wonder just how smart humans are. 1 the fruit-fly experiments described in Carl Zimmer"s piece in the Science Times on Tuesday. Fruit-flies who were taught to be smarter than the average fruit-flies 2 to live shorter lives. This suggests that 3 bulbs burn longer, that there is a(n) 4 in not being too terrifically bright. Intelligence, it 5 , is a high-priced option. It takes more upkeep, burns more fuel and is slow 6 the starting line because it depends on learning—a 7 learning— instead of instinct. Plenty of other species are able to learn, and one of the things they"ve apparently learned is when to 8 . Is there an adaptive value to 9 intelligence? That"s the question behind this new research. I like it. Instead of casting a wistful glance 10 at all the species we"ve left in the dust I. Q. wise, it implicitly asks what the real 11 of our own intelligence might be. This is 12 the mind of every animal I"ve ever met. Research on animal intelligence also makes me wonder what experiments animals would 13 on humans if they had the chance. Every cat with an owner, 14 , is running a small-scale study in operant conditioning. We believe that 15 animals ran the labs, they would test us to 16 the limits of our patience, our faithfulness, our memory for terrain. They would try to decide what intelligence in humans is really 17 , not merely how much of it there is. 18 , they would hope to study a 19 question: Are humans actually aware of the world they live in? 20 the results are inconclusive."

单选题 Questions 11--13 are based on the following passage. You now have 15 seconds to read Questions 11--13.

单选题According to Dr. Stuart Starr,______.

单选题After reading the passage, how much do you know about the compound near Waco?

单选题At the Better Baby Institute

单选题What did John Hadoulis report about the preparations of the Olympics Games?

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