第1周周末双休精读作业（含解析）人教版（2019）选择性必修 第一册

第1周·周末双休精读作业 A For decades, Jean Moffatt has been reaching out over the airwaves. As an amateur radio operator, Moffatt has connected with people worldwide. “By sending signals to satellites, I've talked to people from the Arctic to the Antarctic，” Moffatt said.And on Wednesday at the Ontario Scienc...