In 1987, there were over 1.5 million violent crimes reported in the United States. Most of this violence comes from aggressive people. Psychologists are trying to understand the cause of aggressive behavior that results in injury or death.
Psychologists say that extreme aggression runs in families. In other words, if your parents are very aggressive, there is a strong possibility that you will be too. A team of researchers recently studied a large group of children over a 22-year period. The researchers discovered that the aggressive children grow up to become aggressive adults. Furthermore, the males are likely to have criminal records before the age of 30. This pattern continues as the aggressive adults in turn severely punish their own children.
When a child’s aggressive behavior becomes part of his or her character, it is not easy to change. Therefore, it is important to try to prevent it before adolescence, many psychologists believe that watching viole
A. They like to watch television more than others do.
B. They are likely to give more love to their children than older parents do.
C. It is possible that they will become less aggressive when they grow up.
D. They can do harm to themselves as well as others.
For all his vaunted talents, Federal Reserve Chairman Alan Greenspan has never had much of a reputation as an economic forecaster. In fact, he shies away from making the precise-to-the-decimal-point predictions that many other economists thrive on. Instead, he owes his success as a monetary policymaker to his ability to sniff out threats to the economy and manipulate interest rates to dampen the dangers he perceives.
Now, those instincts are being put to the test. Many Fed watchers-and some policymakers inside the central bank itself are beginning to wonder whether Greenspan has lost his touch. Despite rising risks to the economy from a swooning stock market and soaring oil prices that could hamper growth, the Greenspan-led Federal Open Market Committee (FOMC) opted to leave interest rates unchanged on Sept. 24. But in a rare dissent, two of the Fed’s 12 policymakers broke ranks and voted for a cut in rotes—Dallas Fed President Robert D. McTeer Jr. and central
A. economy is now well on its way to recovery.
B. economists are uncertain about consumer demand.
C. corporate performance is generally not encouraging.
D. businesses have been investing the way the Fed hoped.
某多层现浇钢筋混凝土框架结构，其中中间层高H=2.8m，圆形装饰柱直径d=300mm，混凝土强度等级为C30，纵向受力钢筋为HRB335，纵筋的混凝土保护层厚度c=30mm，配置螺旋式间接钢筋，箍筋直径为8mm，箍筋间距s=50mm，箍筋为HPB235钢筋。
假定柱的轴向压力设计值N=1240kN；对柱进行轴心受压构件验算（不计入间接钢筋的影响），则柱的纵向受力钢筋的最小计算面积为（）。病历摘要：患者女性，24岁。反复右上腹痛3+年，疼痛呈持续性钝痛，放射至肩背部，伴发热、寒战，每次进食油炸食物后发作，均经对症治疗后症状缓解；近日腹痛再发。
T型管拔管的指征有（）我来回答:
