题型:问答题 简答题 某工厂的储气罐因违反操作规程而爆炸。事故发生时,小张位于图中的甲地,先看到发出的火光, 5s后才听到爆炸声,小李位于乙地,则是在看到火光10s后才听到爆炸声。设声速大小为v0,根据上述材料,确定储气罐位于图中A.K、N方块区B.M、N方块区C.O、M方块区D.O、J方块区 查看答案
题型:问答题 简答题 — Good morning. I've got an appointment with Miss Smith in the Personnel Department. — Ah, good morning. You _____ be Mrs. Peters. [ ]A. mightB. must C. would D. can 查看答案