![](https://lstatic.shangxueba.com/sxbzda/h5/images/m_q_title.png)
某实心轴,由a、b两种材料组合而成,轴心部分为材料a,轴套部分为材料b。实心轴受外力偶矩作用后,像整体轴一样产生扭转变形,横截面上的扭矩为T。实心轴两部分的直径分别为da和db,且db=2da。剪切弹性模量分别为Ga和Gb,且Ga=3Gb,则横截面上切应力分布图应为______。
A.
B.
C.
D.
![](https://lstatic.shangxueba.com/sxbzda/h5/images/tips_org.png)
A.
B.
C.
D.
第1题
第2题
A.physiological needs
B.social
C.esteem
D.self-actualization
第3题
第4题
A.social
B.physiological
C.esteem
D.safety
第5题
第6题
A、Maslow recognizes 6 types of needs.
B、Physiological needs refer to the need to stay alive.
C、The third level is the self-actualization needs.
D、The top level is the esteem needs
第7题
A.first
B.second
C.third
D.fourth
第8题
A.A person’s needs for security and protection from physical and emotion harm as well as assurance that physical needs will continue to be met.
B.A person’s needs for internal esteem factors such as self-respect, autonomy, and achievement and external esteem factors such as status, recognition, and attention.
C.A person’s needs for affection, belongingness, acceptance,and friendship
D.A person’s needs for growth, achieving one’s potential, and self-fulfillment; the drive to become what one is capable of becoming.
第9题
119 Employee unions would most likely satisfy which level in Maslow's hierarchy of needs?
A. Belonging
B. Self-actualization
C. Esteem
D. Safety
E. Empowerment
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