第8题: [单项选择]The seventeenth century was one (in that) (many significant advances) (were made in) (both) science and philosophy. A. in that B. many significant advances C. were made in D. both 参考答案:A 答案解析:[分析] 介词后的定语从句应用which引导。改“in that”为“in which”。
第12题:[单选题] What does not contribute to the commercial GPS receiver position error ________. A.Satellite clock B.Ship's speed C.Atmospheric/ionospheric propagation D.Receiver 参考答案:B 【参考译文】什么不会造成商用GPS接收器的定位误差?船舶速度。 【解 析】satellite clock 卫星时钟 atmospheric/ionospheric propagation 大气/电离层传播