下列各种现象中,属于条件反射的是 [ ] A.叩击膝下韧带,小腿突然跳起 B.沸 发布时间:2017-07-29 01:41 │ 来源:www.tikuol.com 题型:选择题 问题: 下列各种现象中,属于条件反射的是 [ ]A.叩击膝下韧带,小腿突然跳起 B.沸水烫手,立即缩回 C.预备铃响,走进教室 D.强光刺眼,瞬间闭目
题型:选择题 The school was moved out of downtown as the number of students had grown too________.A.smallB.fewC.1argeD.many 查看答案