Text 3
In the angry debate over how much of IQ comes from the genes that children inherit from parents and how much comes from experiences, one little fact gets overlooked: no one has identified any genes (other than those in the case of retardation) that affect intelligence. So researchers led by Robert Plomin of London’s Institute of Psychiatry decided to look for some.
Plomin’s colleagues drew blood from two groups of 51 children each. They are all White living in six counties around Cleveland. In one group, the average IQ is 136. In the other group, the average IQ is 103. Isolating the blood cells, the researchers then examined each child’s chromosome 6 ( One of 23 human chromosomes along which genes made of DNA). Of the 37 landmarks on chromo- some 6 that the researchers looked for, one jumped out: a form of gene called IGF2R occurred in twice as many children in high-IQ group as in the average group -- 32 percent versus 16 percent. T
A. find out the differences of intelligence between the students.
B. make sure how many chromonsomes a healthy person have.
C. detect any genes which influence human beings’ intelligence.
D. find out the IQ differences between children and adults.
Text 3
In the angry debate over how much of IQ comes from the genes that children inherit from parents and how much comes from experiences, one little fact gets overlooked: no one has identified any genes (other than those in the case of retardation) that affect intelligence. So researchers led by Robert Plomin of London’s Institute of Psychiatry decided to look for some.
Plomin’s colleagues drew blood from two groups of 51 children each. They are all White living in six counties around Cleveland. In one group, the average IQ is 136. In the other group, the average IQ is 103. Isolating the blood cells, the researchers then examined each child’s chromosome 6 ( One of 23 human chromosomes along which genes made of DNA). Of the 37 landmarks on chromo- some 6 that the researchers looked for, one jumped out: a form of gene called IGF2R occurred in twice as many children in high-IQ group as in the average group -- 32 percent versus 16 percent. T
A. the subjects are not selected according to certain standards.
B. the subjects are totally different people.
C. the findings have not been copied by other researchers.
D. the subjects are from groups emphasizing one particular aspect.
Text 3
When and how much Those are the questions on the lips of investors, bondholders, and other Federal Reserve watchers. The Fed kept interest rates on hold at its Mar. 19 meeting. But the accompanying statement, in which the Fed abandoned its view that economic weakness was the greatest risk in the outlook, makes it clear that policymakers are thinking about the timing of rate hikes in order to bring monetary policy back to a neutral stance.
Even so, there are other factors that argue for some rise in short-term rates——perhaps as early as June, as Wall Street expects. While the Fed’s words lessen the chances of a rate hike at the May meeting, they do not set the criteria for a possible hike at the June 25-26 meeting.
The latest data seem to come down on the "evenly mixed" scenario. Businesses are backing off from last year’s feverish pace of stock-cutting, but domestic demand is holding up. Factories are busier
A. is nowhere near a sustainable growth.
B. is at its weakest point.
C. is near to complete recovery at hand.
D. is much better than it seems.
Text 2
When and how much Those are the questions on the lips of investors, bondholders, and other Federal Reserve watchers. The Fed kept interest rates on hold at its Mar. 19th meeting. But the accompanying statement, in which the Fed abandoned its view that economic weakness was the greatest risk in the outlook, makes it clear that policymakers are thinking about the timing of rate hikes in order to bring monetary policy back to a neutral stance.
Even so, there are other factors that argue for some rise in short-term rates--perhaps as early as June, as Wall Street expects. While the Fed’s words lessen the chances of a rate hike at the May meeting, they do not set the criteria for a possible hike at the June 25-26 meeting.
The latest data seems to come down on the "evenly mixed" scenario. Businesses are backing off from last year’s feverish pace of stock-cutting, but domestic demand is holding up. Factories are busier in respon
A. is nowhere near a sustainable growth.
B. is at its weakest point.
C. is near to complete recovery at hand.
D. is much better than it seems.
我来回答: