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The father’s role in the family is important. One researcher says babies who are cared for by their fathers have greater cognitive (认知的) development at one year of age than babies not cared for by their fathers. Another researcher reports that by spending time with their pre-school children, fathers can help to develop children’s language ability. Researchers also point out that for school-age children, fathers are one bridge with the outside world. Fathers who value (重视) education have children who do better in school than those children whose fathers don’t value education. What’s more, fathers who spend quality time with their children may give their children happy memories which may last a lifetime. While each father is a unique person who educates children in his own style, good fathers have something in common. Good fathers attend their children’s school activities. They also involve the children in their lives and the adult world by taking them to see the workplace, or by taking them when the car needs to be repaired, etc. Good fathers expect a great deal from their children, but also accept and support the unique individuals (个体) that their children are becoming. Good fathers prefer explanations and reasoning to force. Good fathers know their time with children is really an investment (投资) in them. Being an involved father is good for children and good for fathers. Both children and fathers have the chance for growth and development. Today’s lifestyles are changing. More and more fathers are keeping a balance between their personal life, work, and family time. 小题1:According to the passage, we can find that . A.fathers have an important influence on their children from babyhood through adulthood B.fathers’ involvement (介入) is the most important in children’s development C.all fathers have the same way of educating their children D.fathers are more important than mothers in the family 小题2:A unique person in the third paragraph means “a person who ”. A.has the same ideas as others B.is the only one of his type C.does everything without considering others’ ideas D.tries to do everything well 小题3:Which of the following statements is CORRECT according to the passage? A.Good fathers attend their children’s school activities but never take them to their workplace. B.Good fathers expect a great deal from their children and force them to work hard. C.Good fathers try to make it clear to their children that staying with their fathers is an investment. D.Good fathers improve themselves when they spend time with their children. 小题4:The passage is mainly about __________ . A.how to be a qualified father B.the growth and development of both fathers and children C.the father’s role in the growth and development of children D.the change of the father’s role in modern society
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【简答题】药物的红外光谱与标准谱一致时,表示二者为同一化合物A. 无
【判断题】药物的红外光谱与标准谱一致时,表示二者为同一化合物。
A.
正确
B.
错误
【单选题】酒龄即为酒的( )
A.
贮存期
B.
装瓶期
C.
生产周期
D.
酿造期
【简答题】如图所示的打桩装置,半径为R的带齿轮转盘绕中心轴的转动惯量为J,转动角速度为ω0,夯锤的质量为M,开始处于静止状态,当转盘与夯锤碰撞后,问夯锤的速度能有多大?
【单选题】如图所示,主动轮A半径为R1,转动惯量为J1,绕定轴O1转动,从动轮B半径为R2,转动惯量为J2,绕定轴O2转动,两轮之间无相对滑动,若知主动轮受到的驱动力矩为M,两轮之间的摩擦力为【图片】,则下列表达式错误的是( )【图片】
A.
对 A 用转动定律有:
B.
对 B 用转动定律有:
C.
两轮的角加速度相等,即:
D.
两轮的切向加速度相等,即:
【简答题】龙门刨床简化如图所示.已知齿轮O的半径为R,转动惯量为J;其上作用一力偶,其矩为M;工作台AB及工件的质量为m,齿轮与工作台底的齿条相啮合,刨刀的切削力为F,摩擦略去不计.求工作台的加速度和齿轮轴承的水平约束力.
【单选题】简单的讲,酒龄即为酒的( )。
A.
贮存期
B.
装瓶期
C.
生产周期
D.
酿造期
【判断题】药物的红外光谱与标准谱一致时,表示二者为同一化合物。
A.
正确
B.
错误
【简答题】如图所示电路中,当电流源i s1 和电压源u s1 反向时(u s2 不变),电压u ab 是原来的0.5倍;当i s1 和i s2 反向时(u s1 不变),电压u ab 是原来的0.3倍。问:仅i s1 反向(u s1 ,u s2 均不变),电压u ab 应为原来的几倍?
【判断题】酒龄即酒的贮存期。
A.
正确
B.
错误
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