2.刚体对轴的转动惯量取决于:、、。
A. 刚体的质量、刚体的质量分布、刚体的位置
B. 刚体的质量、刚体的质量分布、刚体的形状
C. 刚体的质量、刚体的质量分布、刚体的转轴的位置
D. 刚体的密度、刚体的质量分布、刚体的转轴的位置
(1) In Asia, most people naturally have ______ dark hair.(2) Many people in America are ______. They need to eat less.(3) Her hair is not straight. It is ______.(4) My brother is going ______. Soon he will have no hair at all.(5) You look ______. Have we met before?(6) Julie has lost a lot of weight. She is very ______ now.(7) She is thinking about dyeing her hair ______. She wants it to be lighter.(8) Arnold goes to the gym daily. He has a very ______ body.
以下( ) 纪律具有很大的可变性和不稳定性,还没有内化为学生的自觉行为。
A. 自我促成的纪律
B. 集体促成的纪律
C. 任务促成的纪律
D. 教师促成的纪律
这种课堂纪律具有较强的稳定性,一般不会因任课老师的不同或学科的难易产生大的变化与波动,他对个别学生问题行为的改造作用也十分明显,它属于
A. 自我促成的纪律
B. 集体促成的纪律
C. 任务促成的纪律
D. 教师促成的纪律