我国仅次于巴西和哥伦比亚的植物是( ) A.苔藓、蕨类和种子植物 B.苔藓、蕨类和藻类植物 C.蕨类、藻类和种子植物 D.苔藓、藻类和种子植物 答案:A17.听第9段材料,回答第15至17题.15.What is the man?A.A salesman.B.A post office worker.C.A secretary.16.How much should the woman pay for the parcel in all?A.﹩10.5. B.﹩10. C.50 pence.17.When will the parcel be received?A.About a month. B.About two months. C.In 7-10 days.