第3题: [多项选择]GPS外业施测的主要工作包括()。 A. 天线设置 B. 接收机操作 C. 技术设计 D. 选点埋石 E. 测站记簿 参考答案:A, D, E 答案解析:GPS外业施测是指用GPS接收机获取GPS卫星信号,其主要工作包括天线设置、接收机操作和测站记簿等。BC两项属于外业准备阶段的主要工作。
第32题:[单选题]The literature classes in isolated faraway country are more important for their social value____. A.than that of their contribution B.as well as their educational contribution C.than for their educational contribution D.as their educational contribution 参考答案:C 该句用到的是比较结构more...than...,比较的两个对象之间应是平行关系, 只有for their educational contribution 与for their social value 是平行结构,故选C。