平衡功能是指在不同的环境和情况下维持身体直立姿势的能力。()
参考答案:对
It is worth considering what it is ______ makes people happy in your life. [ ]
A. when
B. what
C. which
D. that
"人际关系三维理论"的"三维"包括()。
A.包容需要
B.支配需要
C.成就需要
D.情感需要