【简答题】S1:Send out two lines.Head spring first and head line second.S2:Roger.Q:What is the sequence of sending out lines?A. Head line first and head spring second. B. Head breast first and head spring second...
【单选题】The first fossil dinosaur to be found with an intact body covering has feathers from head to tail. strengthening the view that modern birds evolved from dinosaurs, scientists say in an article publish...