题目

It was in Beihai Park _____ they made a date for the first time ______ the old couple told us their love story. A. where; that                 B. that; that                         C. where; when       D. that; when 答案：A下列活动中属于条件反射的是①呼吸运动 ②排尿 ③一朝被蛇咬十年怕井绳 ④谈虎色变⑤令行禁止⑥望梅止渴 ⑦膝跳反射 ⑧缩手反射A.③④⑤⑥ B．①②⑦⑧ C．①②③④ D．⑤⑥⑦⑧