下列属于效力待定合同的有()。
A.无民事行为能力人订立的合同
B.限制民事行为能力人订立的合同
C.无权代理人订立的合同
D.无处分权人订立的合同
参考答案:B, C, D
You ______ to the meeting this afternoon if you have something important to do. [ ]
A. needn't to come
B. don't need come
C. don't need coming
D. needn't come
B.短跑运动员最后冲刺时,速度很大,很难停下来,说明速度越大惯性越大
C.把手中的球由静止释放后,球能竖直加速下落,说明力是改变物体惯性的原因
D.抛出去的标枪、手榴弹等是靠惯性向远处运动的