A. homogeneously B. simultaneously C. spontaneously D. harmoniously 参考答案:C 答案解析:难词辨义。原句意为:当他们最可爱的公民坐着轮椅出现的时候,人群自发地欢呼。homogeneously意为“同种类地,同性质地”,simultaneously意为“同时地”,spontaneously意
第7题: [单项选择]引起肌肉单收缩较适宜的电流频率是() A. 1~10Hz B. 10~20Hz C. 20~30Hz D. 50Hz E. 100Hz 参考答案:A