题目

Do you like s___________ in the sea? 答案：【答案】swimming【解析】句意：你喜欢在海里游泳吗？根据in the sea在海里可知，此处应为swim游泳。喜欢做某事为like doing sth，swim的动名词为swimming。故答案为swimming。在△ABC中,sin2A≤sin2B+sin2C-sinBsinC,则A的取值范围是(　　)A．（0,]B．[,π）C．(0,]D．[,π)