365.The United States up its satellite until January 31,1958.A.sentB.didn't sendC.hasn't sentD.wasn't sent65. The United States__up its satellite until January 31,1958. A. sent B.didn't send c. hasn't sent D.wasn't sent 465.The United States up its satellite until January ...
60 years ago this month, in January 1958, The United States launched its first satellite, Explorer 1. 60年前的这个月,即1958年1月,美国发射了第一颗人造卫星“探索者1号”。 It started a legacy and launched the longest-running space exploration program in history, 它开始了一个传奇,并启动了历史...
Explorer 1: America's First Satellite in Pictures The satellite was supposed to launch as the United States' contribution to science during International Geophysical Year (which ran from 1957-1958). Then history intervened. The Soviet Union rocketed Sputnik into space on Oct. 4, 1957. This wa...
这里要表达的意思是美国直到1958年1月31日才发射人造卫星,也就是说之前都没有发射 要用not until 分析总结。 这里要表达的意思是美国直到1958年1月31日才发射人造卫星也就是说之前都没有发射结果一 题目 The United States ( ) up its satellite until January 31,1958.A.sent B.did not send C,has not ...
The first American satellite, Explorer 1, was launched on January 31, 1958, and soon after, a proposal was on the desk of President Dwight Eisenhower for the creation of a new civilian space agency. The proposal that was put forward by the NACA chairman, Hugh Dryden, was to simply use ...
主语是The U.S.所以不需要用被动,不用D.wasn't sent 可以不用完成时态 当然用也没关系,用的话就是hadn't sent 分析总结。 当然用也没关系用的话就是hadntsent结果一 题目 The United States___up its satellite until January 31,1958.A.sentB.didn't sendC.hasn't sentD.wasn't sent(麻烦附上sent...
百度试题 结果1 题目The United States ___ up its satellite until January 31,1958. [ ]A.sent B.didn't send C.hasn't sent D.wasn't sent 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目The United States ___ up its satellite until January 31,1958.[ ]A.sent B.didn't send C.hasn't sent D.wasn't sent相关知识点: 试题来源: 解析 答案:B 反馈 收藏
百度试题 结果1 题目The united states ___up it’s satellite until January 31, 1958. A. Sent B. didn’t send C. hasn’t sent D. wasn’t sent 相关知识点: 试题来源: 解析 B 反馈 收藏
The Object D was conceived as a multi-functional science laboratory with an ambitious array of instruments onboard. It was expected to measure the density and ion composition of the Earth's atmosphere and its magnetic field, and to study solar radiation and cosmic rays. The first satellite also...