重写句子：Not until he crossed the line and felt the tape snap against his chest did Johnson know he had won the race.(loose sentence)
Johnson did not know he had won the race until he crossed the line and felt the tape snap against his chest.
暂无解析
在托幼机构教育过程的诸多关系中，最重要的是（）
行为的刻板性和破坏性是儿童 () 的一个核心特征。
学前儿童行为问题产生的原因，在父母教育方面表现为放纵孩子的好奇心。
智力落后儿童的身心特点
正强化实施前，应把计划告诉儿童，以期取得配合。