题目内容

作用在刚体上的两个力，使刚体保持平衡的必要和充分条件是这两个力的、，且在同一直线上。

查看答案

搜索结果不匹配？点我反馈

更多问题

光滑圆柱铰链在受力图上可表示为一对。

约束力的作用点在接触点位置处，方向与该约束所能阻碍的位移方向，大小由决定。

Fill in the blank with a word chosen from the below in its proper form.1. The ____ system is a network consisting of blood, blood vessels, and the heart.2. We can work with immediate family members and representatives to close the account of a person where appropriate.3. Now in many countries, you can register your consent to become an organ and tissue _ online.4. The type of organ _ you experience depends on its timing after transplant.5. resuscitation is a lifesaving technique useful in many emergencies, including a heart attack or near drowning.6. Many organ _ coordinators are registered nurses with an extensive surgical background.7. An drug helps control, or suppress, the immune system in order to slow down the symptoms of severe eczema.8. A skin ____ is where healthy skin is removed from an unaffected area of the body and used to cover lost or damaged skin.

Match the Chinese to English.