第6题: [单项选择]关于舌根音的说法正确的是()。 A. 可以与开口呼韵母相拼 B. 可以与齐齿呼韵母相拼 C. 可以与撮口呼韵母相拼 D. 与四呼都可以相拼 参考答案:C
第7题: [单项选择]One of the requirements for a fire is that the material______to its burning temperature. A. is heated B. will be heated C. be heated D. would be heated 参考答案:C 答案解析:这里应用动词原形表示虚拟语气。表示建议、命令、意愿和要求的名词如suggestion,advice,order,requirement,request,demand,recommendation,de