【题目】Hospital staff burst into cheers after doctors completed a 20-hour operation to have _______
one-year-old twins at the head.
A. removed B. divided C. separated D. produced
在线课程【答案】C
【解析】
考查动词。separated分开。句意：医院工作人员突然爆发出欢呼声，医生们完成了20小时的手术，将一岁的双胞胎的头分开了。