1 OC how 2.SC what 3 oc whether 4 oc what\ which sc what 6.sc that 7\sc why \r\n8 oc why 9 sc when 10 pc as if 11 pc where 12 sc how \r\n13 pc why 14 pc that 15 oc whether\r\n答案绝对正确。望采纳
