The word thwarted in paragraph 4 is closest in meaning to
A. preceded
B. ended
C. concealed
D. inspired
查看答案
What can be inferred about children who easily solve the water task described in paragraph
A. They have already experienced the five-seven shift．
B. They were taught about the concept of conservation．
C. They had time to practice the task before the experiment．
D. They are more intelligent than others of the same age．
Which sentence below best expresses the essential information in the highlighted sentence
A. Before the age of five, children think the longer line has more coins because they are incapable of understanding conservation．
B. Five-year-old children do not understand the value ofmoney, so they do not care if one line of coins is longer than another．
C. Because of the five-seven shift, children can understand why the longer row of coins is a better example of conservation．
D. Even if two rows of coins are different in length, very young children will say that both rows have the same number of coins．
In stating that there have been many revolutionary technologies in paragraph 1，the author
A. complex
B. expensive
C. influential
D. controversial
Which of the following situations would be most likely to result in a uniform. dispersion
A. Birds compete for a place to build their nests．
B. Fish swim in large schools to avoid predators．
C. Whales develop strong bonds among relatives．
D. Elephants form. a circle to protect their young．
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