测回法水平角观测一测回时,两个半测回角值差的限值为()。A.±50" B.±40" 发布时间:2017-05-24 03:50 │ 来源:www.tikuol.com 题型:单项选择题 问题: 测回法水平角观测一测回时,两个半测回角值差的限值为()。A.±50"B.±40"C.±30'D.±20"
题型:单项选择题 — Did you enjoy yourself at the party? — Yes. I've never been to _____ one before. [ ]A. a more exciting B. the most excited C. a more excited D. the most exciting 查看答案