When a group of children who have been watching television programs that include acts of violence is sent to play with a group of children who have been watching programs that do not include acts of violence, the children who have been watching violent programs commit a much greater number of violent acts in their play than do the children who have been watching nonviolent programs. Therefore, children at play can be prevented from committing violent acts by not being allowed to watch violence on television. The argument in the passage assumes which one of the following
A. Television has a harmful effect on society.
B. Parents are responsible for the acts of their children.
C. Violent actions and passive observation of violent actions are not related.
D. There are no other differences between the two groups of children that might account for the difference in violent behavior.
E. Children who are treated violently will respond with violence.
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The more television children watch, the less competent they are in mathematical knowledge. More than a third of children in the United States watch television for more than five hours a day; in South Korea the figure is only 7 percent. But whereas less than 15 percent of children in the United States understand advanced measurement and geometric concepts, 40 percent of South Korean children are competent in these areas. Therefore, if United States children are to do well in mathematics, they must watch less television. Which one of the following is an assumption upon which the argument depends
A. Children in the United States are less interested in advanced measurement and geometric concepts than are South Korean children.
B. South Korean children are more disciplined about doing schoolwork than are children in the United States.
Children who want to do well in advanced measurement and geometry will watch less television.
D. A child’s ability in advanced measurement and geometry increases if he or she watches less than one hour of television a day.
E. The instruction in advanced measurement and geometric concepts available to children in the United States is not substantially worse than that available to, South Korean children.
Since Mayor Drabble always repays her political debts as soon as possible, she will almost certainly appoint Lee to be the new head of the arts commission. Lee has wanted that job for a long time, and Drabble owes Lee a lot for his support in the last election. Which one of the following is an assumption on which the argument depends
A. Mayor Drabble has no political debt that is both of longer standing than the one she owes to Lee and could as suitable be repaid by an appointment to be the new head of the arts commission.
B. There is no one to whom Mayor Drabble owes a greater political debt for support in the last election than the political debt she owes to Lee.
C. Lee is the only person to whom Mayor Drabble owes a political debt who would be willing to accept an appointment from her as the new head of the arts commission.
D. Whether Lee is qualified to head the arts commission is irrelevant to Mayor Drabble’s decision.
E. The only way that Mayor Drabble can adequately repay her political debt to Lee is by appointing him to head the arts commission.
水磨石面层砂浆色粉与石子的参考比例。当石子的空隙率小于40%时，色粉：石子(质量比)=1:3或1:4。( )
A. 对
B. 错
一般抹灰用于浴室、潮湿车间等墙裙、勒脚或地面基层，其体积配合比为：水泥:砂=1:5或1:6。( )
A. 对
B. 错
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