<正> 下面走来二十位专家,你认识他们吗?请根据所列选择答案指出他们所从事的行当並确定词义,答案见第 页。1.geologist——expert in A:politics.B: climates.C:earth's crust.D:geogra- phy.2.optometrist——A:physician who treats eye diseases.B:medical doctor who examines eyes.C:professional who