第9题: [单项选择]不同成熟度烟叶外观质量,化学成分,吸食质量,物理特性等方面存在很大差异() A. 以成熟烟叶的总体质量最佳:完熟叶次之.尚熟叶再次之.欠熟叶最差. B. 以成熟烟叶的总体质量最佳.尚熟叶次之.完熟叶再次之.欠熟叶最 C. 以完熟烟叶的总体质量最佳.成熟叶次之.尚熟叶再次之.欠熟叶最差 D. 以成熟烟叶的总体质量最佳.尚熟叶次之.欠熟叶再次之.完熟叶最差. 参考答案:A
第11题: [单项选择]Which of the following is TRUE about the words A. They are used to express feelings only. B. They can not be written down. C. They are simply sounds. D. They are mysterious. 参考答案:C 答案解析:第1段最后一句指出“These sounds...we call words”,故选C。